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Finding the Third Proportional to 77,766.75 and 115,009.13

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Solution

The third proportional to 77,766.75 and 115,009.13 is: 170,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,766.75 : 115,009.13 = 115,009.13 : x
  2. Step 2: Convert to fraction form
    77,766.75/115,009.13 = 115,009.13/x
  3. Step 3: Cross multiply
    77,766.75x = 115,009.13 × 115,009.13
  4. Step 4: Simplify right side
    77,766.75x = 13,227,098,833.27
  5. Step 5: Solve for x
    x = 13,227,098,833.27/77,766.75
  6. Step 6: Final answer
    x = 170,086.82

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.