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Finding the Third Proportional to 68,580 and 103,599

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Solution

The third proportional to 68,580 and 103,599 is: 156,499.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,580 : 103,599 = 103,599 : x
  2. Step 2: Convert to fraction form
    68,580/103,599 = 103,599/x
  3. Step 3: Cross multiply
    68,580x = 103,599 × 103,599
  4. Step 4: Simplify right side
    68,580x = 10,732,752,801
  5. Step 5: Solve for x
    x = 10,732,752,801/68,580
  6. Step 6: Final answer
    x = 156,499.75

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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.