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Finding the Third Proportional to 87,355 and 131,753

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Solution

The third proportional to 87,355 and 131,753 is: 198,716.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,355 : 131,753 = 131,753 : x
  2. Step 2: Convert to fraction form
    87,355/131,753 = 131,753/x
  3. Step 3: Cross multiply
    87,355x = 131,753 × 131,753
  4. Step 4: Simplify right side
    87,355x = 17,358,853,009
  5. Step 5: Solve for x
    x = 17,358,853,009/87,355
  6. Step 6: Final answer
    x = 198,716.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.