King Ghidorah, Mothra and Rodan weights

So im sitting in my sisters room, explaining everything about Godzilla 2 and almost everything about Godzilla thay she doesn't know. Now im just sitting there bored, and im sitting there now typing this on my phone. Anyway I estimated Mothra, Rodans and King Ghidorahs weights.

I used a process that I explained here

I used pictures of Mothra in comparison to Godzilla, and I deduced that she is almost always a third of Godzilla. So 355 divided by 3, she is 118 ft tall. So I then divides 90 000 tons by 3 and got 30 000 tons.

Mothra = 30 000 Tons

Next up is Rodan. I added all of Rodans heights in meters [(50+70+100)÷3] and got 

 73.3333333333. Converted that to feet and got 242. 355÷242=1.4669421488. 90 000 ÷ 1.4669421488 = 61 652

Rodan = 61 652 tons.

Next up is King Ghidorah, I used this method.

King Ghidorah = 117 000 tons

However after seeing Blackmatters deviantart and realising Legendary would want Ghidorah to be BIG, i put him at a more probable height of 160 meters (528 ft).

(UPDATED) King Ghidorah = 133 000 tons

(The heads of design 2 and the way Design 3 uses the wings on land with Design 1, would be perfect for King Ghidorah)

These are just fan theorys and everything was based on height, although I think they are somewhat close to what they actually weigh.

Share your opinions and custom sizes and weights ;-)