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Finding the Third Proportional to 61,086 and 129,894

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Solution

The third proportional to 61,086 and 129,894 is: 276,208.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,086 : 129,894 = 129,894 : x
  2. Step 2: Convert to fraction form
    61,086/129,894 = 129,894/x
  3. Step 3: Cross multiply
    61,086x = 129,894 × 129,894
  4. Step 4: Simplify right side
    61,086x = 16,872,451,236
  5. Step 5: Solve for x
    x = 16,872,451,236/61,086
  6. Step 6: Final answer
    x = 276,208.15

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.