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Finding the Third Proportional to 81,287.75 and 125,041.25

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Solution

The third proportional to 81,287.75 and 125,041.25 is: 192,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,287.75 : 125,041.25 = 125,041.25 : x
  2. Step 2: Convert to fraction form
    81,287.75/125,041.25 = 125,041.25/x
  3. Step 3: Cross multiply
    81,287.75x = 125,041.25 × 125,041.25
  4. Step 4: Simplify right side
    81,287.75x = 15,635,314,201.56
  5. Step 5: Solve for x
    x = 15,635,314,201.56/81,287.75
  6. Step 6: Final answer
    x = 192,345.27

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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.