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Finding the Third Proportional to 89,724.38 and 138,844.13

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Solution

The third proportional to 89,724.38 and 138,844.13 is: 214,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,724.38 : 138,844.13 = 138,844.13 : x
  2. Step 2: Convert to fraction form
    89,724.38/138,844.13 = 138,844.13/x
  3. Step 3: Cross multiply
    89,724.38x = 138,844.13 × 138,844.13
  4. Step 4: Simplify right side
    89,724.38x = 19,277,691,047.02
  5. Step 5: Solve for x
    x = 19,277,691,047.02/89,724.38
  6. Step 6: Final answer
    x = 214,854.56

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.