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Finding the Third Proportional to 61,617.75 and 126,154.50

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Solution

The third proportional to 61,617.75 and 126,154.50 is: 258,285.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,617.75 : 126,154.50 = 126,154.50 : x
  2. Step 2: Convert to fraction form
    61,617.75/126,154.50 = 126,154.50/x
  3. Step 3: Cross multiply
    61,617.75x = 126,154.50 × 126,154.50
  4. Step 4: Simplify right side
    61,617.75x = 15,914,957,870.25
  5. Step 5: Solve for x
    x = 15,914,957,870.25/61,617.75
  6. Step 6: Final answer
    x = 258,285.28

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.