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Finding the Third Proportional to 90,704 and 136,402

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Solution

The third proportional to 90,704 and 136,402 is: 205,123.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,704 : 136,402 = 136,402 : x
  2. Step 2: Convert to fraction form
    90,704/136,402 = 136,402/x
  3. Step 3: Cross multiply
    90,704x = 136,402 × 136,402
  4. Step 4: Simplify right side
    90,704x = 18,605,505,604
  5. Step 5: Solve for x
    x = 18,605,505,604/90,704
  6. Step 6: Final answer
    x = 205,123.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.