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Finding the Third Proportional to 87,840 and 132,360.75

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Solution

The third proportional to 87,840 and 132,360.75 is: 199,446.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840 : 132,360.75 = 132,360.75 : x
  2. Step 2: Convert to fraction form
    87,840/132,360.75 = 132,360.75/x
  3. Step 3: Cross multiply
    87,840x = 132,360.75 × 132,360.75
  4. Step 4: Simplify right side
    87,840x = 17,519,368,140.56
  5. Step 5: Solve for x
    x = 17,519,368,140.56/87,840
  6. Step 6: Final answer
    x = 199,446.36

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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.