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Finding the Third Proportional to 81,553.50 and 125,390.25

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Solution

The third proportional to 81,553.50 and 125,390.25 is: 192,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,553.50 : 125,390.25 = 125,390.25 : x
  2. Step 2: Convert to fraction form
    81,553.50/125,390.25 = 125,390.25/x
  3. Step 3: Cross multiply
    81,553.50x = 125,390.25 × 125,390.25
  4. Step 4: Simplify right side
    81,553.50x = 15,722,714,795.06
  5. Step 5: Solve for x
    x = 15,722,714,795.06/81,553.50
  6. Step 6: Final answer
    x = 192,790.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.