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Finding the Third Proportional to 87,318.56 and 131,661.56

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Solution

The third proportional to 87,318.56 and 131,661.56 is: 198,523.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,318.56 : 131,661.56 = 131,661.56 : x
  2. Step 2: Convert to fraction form
    87,318.56/131,661.56 = 131,661.56/x
  3. Step 3: Cross multiply
    87,318.56x = 131,661.56 × 131,661.56
  4. Step 4: Simplify right side
    87,318.56x = 17,334,767,039.94
  5. Step 5: Solve for x
    x = 17,334,767,039.94/87,318.56
  6. Step 6: Final answer
    x = 198,523.28

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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.