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Finding the Third Proportional to 87,513 and 132,069

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Solution

The third proportional to 87,513 and 132,069 is: 199,310.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,513 : 132,069 = 132,069 : x
  2. Step 2: Convert to fraction form
    87,513/132,069 = 132,069/x
  3. Step 3: Cross multiply
    87,513x = 132,069 × 132,069
  4. Step 4: Simplify right side
    87,513x = 17,442,220,761
  5. Step 5: Solve for x
    x = 17,442,220,761/87,513
  6. Step 6: Final answer
    x = 199,310.05

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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.