Finding the Fourth Proportional to 157,372.64, 217,175.16 and 93,713.12
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Solution
The fourth proportional to 157,372.64, 217,175.16 and 93,713.12 is: 129,324.65
Step by Step Solution
- Step 1: Write the proportion equation
157,372.64 : 217,175.16 = 93,713.12 : x - Step 2: Convert to fraction form
157,372.64/217,175.16 = 93,713.12/x - Step 3: Cross multiply
157,372.64x = 217,175.16 × 93,713.12 - Step 4: Simplify right side
157,372.64x = 20,352,161,830.10 - Step 5: Solve for x
x = 20,352,161,830.10/157,372.64 - Step 6: Final answer
x = 129,324.65
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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.