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Finding the Third Proportional to 61,190 and 129,734

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Solution

The third proportional to 61,190 and 129,734 is: 275,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,190 : 129,734 = 129,734 : x
  2. Step 2: Convert to fraction form
    61,190/129,734 = 129,734/x
  3. Step 3: Cross multiply
    61,190x = 129,734 × 129,734
  4. Step 4: Simplify right side
    61,190x = 16,830,910,756
  5. Step 5: Solve for x
    x = 16,830,910,756/61,190
  6. Step 6: Final answer
    x = 275,059.83

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.