Home / 154,437.30-231,785.55-75,618.90

Finding the Fourth Proportional to 154,437.30, 231,785.55 and 75,618.90

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Solution

The fourth proportional to 154,437.30, 231,785.55 and 75,618.90 is: 113,491.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,437.30 : 231,785.55 = 75,618.90 : x
  2. Step 2: Convert to fraction form
    154,437.30/231,785.55 = 75,618.90/x
  3. Step 3: Cross multiply
    154,437.30x = 231,785.55 × 75,618.90
  4. Step 4: Simplify right side
    154,437.30x = 17,527,368,326.90
  5. Step 5: Solve for x
    x = 17,527,368,326.90/154,437.30
  6. Step 6: Final answer
    x = 113,491.81

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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.