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Finding the Third Proportional to 89,871.75 and 136,449

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Solution

The third proportional to 89,871.75 and 136,449 is: 207,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,871.75 : 136,449 = 136,449 : x
  2. Step 2: Convert to fraction form
    89,871.75/136,449 = 136,449/x
  3. Step 3: Cross multiply
    89,871.75x = 136,449 × 136,449
  4. Step 4: Simplify right side
    89,871.75x = 18,618,329,601
  5. Step 5: Solve for x
    x = 18,618,329,601/89,871.75
  6. Step 6: Final answer
    x = 207,165.54

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.