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Finding the Fourth Proportional to 159,957.68, 240,084.13 and 81,127.27

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Solution

The fourth proportional to 159,957.68, 240,084.13 and 81,127.27 is: 121,765.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,957.68 : 240,084.13 = 81,127.27 : x
  2. Step 2: Convert to fraction form
    159,957.68/240,084.13 = 81,127.27/x
  3. Step 3: Cross multiply
    159,957.68x = 240,084.13 × 81,127.27
  4. Step 4: Simplify right side
    159,957.68x = 19,477,369,234.20
  5. Step 5: Solve for x
    x = 19,477,369,234.20/159,957.68
  6. Step 6: Final answer
    x = 121,765.76

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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.