migration of protein in SDS page based on molecular weight

[nomdeplume1234]

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If "The log of a molecule's molecular weight is proportional to the distance that molecule has migrated."

Then how can I calculate the relative distance two molecules will travel based on their molecular weight?

If molecule A weights 200 then LOG 200 = 2.3
If molecule B weights 100 then LOG 100 = 2

Since 2.3 > 2.0 doesn't that mean the heavier molecule should travel farther?

But according to my Googling the lighter molecule will travel farther.
What am I missing?
Thank you!

 

[Cawolf]

I think you have your axes reversed.

 

[sazerac]

Not sure where you got that original quote from, but yeah it should read "inversely proportional".