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Finding the Third Proportional to 66,872.25 and 103,879.13

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Solution

The third proportional to 66,872.25 and 103,879.13 is: 161,365.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,872.25 : 103,879.13 = 103,879.13 : x
  2. Step 2: Convert to fraction form
    66,872.25/103,879.13 = 103,879.13/x
  3. Step 3: Cross multiply
    66,872.25x = 103,879.13 × 103,879.13
  4. Step 4: Simplify right side
    66,872.25x = 10,790,872,610.77
  5. Step 5: Solve for x
    x = 10,790,872,610.77/66,872.25
  6. Step 6: Final answer
    x = 161,365.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.