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Finding the Third Proportional to 87,428.53 and 130,717.13

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Solution

The third proportional to 87,428.53 and 130,717.13 is: 195,439.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,428.53 : 130,717.13 = 130,717.13 : x
  2. Step 2: Convert to fraction form
    87,428.53/130,717.13 = 130,717.13/x
  3. Step 3: Cross multiply
    87,428.53x = 130,717.13 × 130,717.13
  4. Step 4: Simplify right side
    87,428.53x = 17,086,966,768.27
  5. Step 5: Solve for x
    x = 17,086,966,768.27/87,428.53
  6. Step 6: Final answer
    x = 195,439.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.