Beginning
Let's use proportion to answer this question.
Introduction:
To answer this question, we take the extremes and multiply it with each other and we take the middle terms and multiply with each other. In the end, we divide and get the value of x.
The word "extremes" defines that the last two terms in a proportion.
The phrase "middle terms" defines that the middle two terms in a proportion. Below is the solution.
Solution:
- => 3:4 :: x:120 [Key tip: If you see a "::" symbol, it basically means that they are equal.
- => 4x = 360
- => x = 360/4
- => x = 90
Conclusion:
Hence, the answer to your problem is 90 grams.