Home / 159,474.06-239,359.31-80,644.86

Finding the Fourth Proportional to 159,474.06, 239,359.31 and 80,644.86

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Solution

The fourth proportional to 159,474.06, 239,359.31 and 80,644.86 is: 121,042.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,474.06 : 239,359.31 = 80,644.86 : x
  2. Step 2: Convert to fraction form
    159,474.06/239,359.31 = 80,644.86/x
  3. Step 3: Cross multiply
    159,474.06x = 239,359.31 × 80,644.86
  4. Step 4: Simplify right side
    159,474.06x = 19,303,098,044.65
  5. Step 5: Solve for x
    x = 19,303,098,044.65/159,474.06
  6. Step 6: Final answer
    x = 121,042.24

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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.