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Finding the Fourth Proportional to 157,349.04, 217,144.17 and 85,729.04

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Solution

The fourth proportional to 157,349.04, 217,144.17 and 85,729.04 is: 118,307.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,349.04 : 217,144.17 = 85,729.04 : x
  2. Step 2: Convert to fraction form
    157,349.04/217,144.17 = 85,729.04/x
  3. Step 3: Cross multiply
    157,349.04x = 217,144.17 × 85,729.04
  4. Step 4: Simplify right side
    157,349.04x = 18,615,561,235.70
  5. Step 5: Solve for x
    x = 18,615,561,235.70/157,349.04
  6. Step 6: Final answer
    x = 118,307.43

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1.5x scale

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.