Home / 154,947.66-231,923.24-79,965.68

Finding the Fourth Proportional to 154,947.66, 231,923.24 and 79,965.68

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Solution

The fourth proportional to 154,947.66, 231,923.24 and 79,965.68 is: 119,691.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,947.66 : 231,923.24 = 79,965.68 : x
  2. Step 2: Convert to fraction form
    154,947.66/231,923.24 = 79,965.68/x
  3. Step 3: Cross multiply
    154,947.66x = 231,923.24 × 79,965.68
  4. Step 4: Simplify right side
    154,947.66x = 18,545,898,034.96
  5. Step 5: Solve for x
    x = 18,545,898,034.96/154,947.66
  6. Step 6: Final answer
    x = 119,691.37

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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.