If the weight of a person on Venus is directly proportional to their weight on Earth, we can set up a proportion to find out how much a person weighing 180 pounds on Earth would weigh on Venus.
Let's call the weight on Earth W_E and the weight on Venus W_V.
We know that W_E = 120 pounds and W_V = 106 pounds.
Now, we want to find W_V when W_E is 180 pounds. So, we set up the proportion:
W_E / W_V = 120 / 106
Now, we can solve for W_V:
180 / W_V = 120 / 106
To isolate W_V, cross-multiply:
180 * 106 = 120 * W_V
19,080 = 120 * W_V
Now, divide both sides by 120 to find W_V:
W_V = 19,080 / 120
W_V = 159 pounds
So, a person weighing 180 pounds on Earth would weigh approximately 159 pounds on Venus if weight is directly proportional.