3 : 4 : 6
What is the shortest one?
Yeah, it is 3. Replace it with 54.
54 : 4 : 6
You increased with 54, now how many "3's" did you increased?
That is 54/3 = 18.
To find the corresponding value of 4 and 6 on the ratio, multiply it by 18.
4 * 18 = 72
6 * 18 = 108
Check:
54 : 72 : 108 << ------ the answer is 108
54/3 : 72/4 : 108/6
18 : 18 : 18
The first and the shortest part is 54cm, as said.
The second and the average part is 72cm.
The third and the longest part is 108cm.
And the rope is totally 234cm
