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Finding the Fourth Proportional to 179,687.97, 247,983.32 and 99,122.54

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Solution

The fourth proportional to 179,687.97, 247,983.32 and 99,122.54 is: 136,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,687.97 : 247,983.32 = 99,122.54 : x
  2. Step 2: Convert to fraction form
    179,687.97/247,983.32 = 99,122.54/x
  3. Step 3: Cross multiply
    179,687.97x = 247,983.32 × 99,122.54
  4. Step 4: Simplify right side
    179,687.97x = 24,580,735,563.92
  5. Step 5: Solve for x
    x = 24,580,735,563.92/179,687.97
  6. Step 6: Final answer
    x = 136,796.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.