Question

Find the missing number in this proportion.

7/35=28/?

120
140
180
190

Answer 1

It's 140 because 28 divided by 7 is 4. This means that they are multiplying by 4. 35 times 4 is 140. Let me know if you need anymore help. 

Answer 2

Let, the missing number = x
Then, 7/35 = 28/x
1/5 = 28/x
x = 28 * 5
x = 140

In short, Your Answer would be Option B

Hope this helps!