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Finding the Third Proportional to 81,287.30 and 125,040.59

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Solution

The third proportional to 81,287.30 and 125,040.59 is: 192,344.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,287.30 : 125,040.59 = 125,040.59 : x
  2. Step 2: Convert to fraction form
    81,287.30/125,040.59 = 125,040.59/x
  3. Step 3: Cross multiply
    81,287.30x = 125,040.59 × 125,040.59
  4. Step 4: Simplify right side
    81,287.30x = 15,635,148,131.59
  5. Step 5: Solve for x
    x = 15,635,148,131.59/81,287.30
  6. Step 6: Final answer
    x = 192,344.30

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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.