Home / 102,487.17-141,432.53-57,164.03

Finding the Fourth Proportional to 102,487.17, 141,432.53 and 57,164.03

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Solution

The fourth proportional to 102,487.17, 141,432.53 and 57,164.03 is: 78,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,487.17 : 141,432.53 = 57,164.03 : x
  2. Step 2: Convert to fraction form
    102,487.17/141,432.53 = 57,164.03/x
  3. Step 3: Cross multiply
    102,487.17x = 141,432.53 × 57,164.03
  4. Step 4: Simplify right side
    102,487.17x = 8,084,853,387.90
  5. Step 5: Solve for x
    x = 8,084,853,387.90/102,487.17
  6. Step 6: Final answer
    x = 78,886.49

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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.