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Finding the Third Proportional to 87,727 and 136,086

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Solution

The third proportional to 87,727 and 136,086 is: 211,102.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,727 : 136,086 = 136,086 : x
  2. Step 2: Convert to fraction form
    87,727/136,086 = 136,086/x
  3. Step 3: Cross multiply
    87,727x = 136,086 × 136,086
  4. Step 4: Simplify right side
    87,727x = 18,519,399,396
  5. Step 5: Solve for x
    x = 18,519,399,396/87,727
  6. Step 6: Final answer
    x = 211,102.62

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.