Home / 159,286.68-239,077.92-80,456.34

Finding the Fourth Proportional to 159,286.68, 239,077.92 and 80,456.34

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Solution

The fourth proportional to 159,286.68, 239,077.92 and 80,456.34 is: 120,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,286.68 : 239,077.92 = 80,456.34 : x
  2. Step 2: Convert to fraction form
    159,286.68/239,077.92 = 80,456.34/x
  3. Step 3: Cross multiply
    159,286.68x = 239,077.92 × 80,456.34
  4. Step 4: Simplify right side
    159,286.68x = 19,235,334,418.01
  5. Step 5: Solve for x
    x = 19,235,334,418.01/159,286.68
  6. Step 6: Final answer
    x = 120,759.21

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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.