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Finding the Fourth Proportional to 178,765.92, 268,134.92 and 84,016.80

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Solution

The fourth proportional to 178,765.92, 268,134.92 and 84,016.80 is: 126,018.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,765.92 : 268,134.92 = 84,016.80 : x
  2. Step 2: Convert to fraction form
    178,765.92/268,134.92 = 84,016.80/x
  3. Step 3: Cross multiply
    178,765.92x = 268,134.92 × 84,016.80
  4. Step 4: Simplify right side
    178,765.92x = 22,527,837,946.66
  5. Step 5: Solve for x
    x = 22,527,837,946.66/178,765.92
  6. Step 6: Final answer
    x = 126,018.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.