Home / 159,964.32-239,923.92-87,939.68

Finding the Fourth Proportional to 159,964.32, 239,923.92 and 87,939.68

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Solution

The fourth proportional to 159,964.32, 239,923.92 and 87,939.68 is: 131,897.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,964.32 : 239,923.92 = 87,939.68 : x
  2. Step 2: Convert to fraction form
    159,964.32/239,923.92 = 87,939.68/x
  3. Step 3: Cross multiply
    159,964.32x = 239,923.92 × 87,939.68
  4. Step 4: Simplify right side
    159,964.32x = 21,098,832,749.15
  5. Step 5: Solve for x
    x = 21,098,832,749.15/159,964.32
  6. Step 6: Final answer
    x = 131,897.12

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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.