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Finding the Third Proportional to 87,320.50 and 131,490.75

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Solution

The third proportional to 87,320.50 and 131,490.75 is: 198,004.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,320.50 : 131,490.75 = 131,490.75 : x
  2. Step 2: Convert to fraction form
    87,320.50/131,490.75 = 131,490.75/x
  3. Step 3: Cross multiply
    87,320.50x = 131,490.75 × 131,490.75
  4. Step 4: Simplify right side
    87,320.50x = 17,289,817,335.56
  5. Step 5: Solve for x
    x = 17,289,817,335.56/87,320.50
  6. Step 6: Final answer
    x = 198,004.10

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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.