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Finding the Third Proportional to 78,624 and 124,551

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Solution

The third proportional to 78,624 and 124,551 is: 197,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,624 : 124,551 = 124,551 : x
  2. Step 2: Convert to fraction form
    78,624/124,551 = 124,551/x
  3. Step 3: Cross multiply
    78,624x = 124,551 × 124,551
  4. Step 4: Simplify right side
    78,624x = 15,512,951,601
  5. Step 5: Solve for x
    x = 15,512,951,601/78,624
  6. Step 6: Final answer
    x = 197,305.55

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.