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Finding the Fourth Proportional to 179,456.79, 247,648.36 and 101,931.90

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Solution

The fourth proportional to 179,456.79, 247,648.36 and 101,931.90 is: 140,664.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,456.79 : 247,648.36 = 101,931.90 : x
  2. Step 2: Convert to fraction form
    179,456.79/247,648.36 = 101,931.90/x
  3. Step 3: Cross multiply
    179,456.79x = 247,648.36 × 101,931.90
  4. Step 4: Simplify right side
    179,456.79x = 25,243,267,866.68
  5. Step 5: Solve for x
    x = 25,243,267,866.68/179,456.79
  6. Step 6: Final answer
    x = 140,664.88

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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.