Finding the Fourth Proportional to 168,351.41, 232,321.57 and 91,872.02
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Solution
The fourth proportional to 168,351.41, 232,321.57 and 91,872.02 is: 126,781.55
Step by Step Solution
- Step 1: Write the proportion equation
168,351.41 : 232,321.57 = 91,872.02 : x - Step 2: Convert to fraction form
168,351.41/232,321.57 = 91,872.02/x - Step 3: Cross multiply
168,351.41x = 232,321.57 × 91,872.02 - Step 4: Simplify right side
168,351.41x = 21,343,852,276.60 - Step 5: Solve for x
x = 21,343,852,276.60/168,351.41 - Step 6: Final answer
x = 126,781.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.