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Finding the Third Proportional to 71,758 and 98,505

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Solution

The third proportional to 71,758 and 98,505 is: 135,221.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,758 : 98,505 = 98,505 : x
  2. Step 2: Convert to fraction form
    71,758/98,505 = 98,505/x
  3. Step 3: Cross multiply
    71,758x = 98,505 × 98,505
  4. Step 4: Simplify right side
    71,758x = 9,703,235,025
  5. Step 5: Solve for x
    x = 9,703,235,025/71,758
  6. Step 6: Final answer
    x = 135,221.65

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.