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Finding the Third Proportional to 87,689.25 and 125,402.63

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Solution

The third proportional to 87,689.25 and 125,402.63 is: 179,335.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,689.25 : 125,402.63 = 125,402.63 : x
  2. Step 2: Convert to fraction form
    87,689.25/125,402.63 = 125,402.63/x
  3. Step 3: Cross multiply
    87,689.25x = 125,402.63 × 125,402.63
  4. Step 4: Simplify right side
    87,689.25x = 15,725,818,356.89
  5. Step 5: Solve for x
    x = 15,725,818,356.89/87,689.25
  6. Step 6: Final answer
    x = 179,335.76

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.