Home / 154,471.48-231,618.42-82,335.54

Finding the Fourth Proportional to 154,471.48, 231,618.42 and 82,335.54

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Solution

The fourth proportional to 154,471.48, 231,618.42 and 82,335.54 is: 123,455.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,471.48 : 231,618.42 = 82,335.54 : x
  2. Step 2: Convert to fraction form
    154,471.48/231,618.42 = 82,335.54/x
  3. Step 3: Cross multiply
    154,471.48x = 231,618.42 × 82,335.54
  4. Step 4: Simplify right side
    154,471.48x = 19,070,427,337.20
  5. Step 5: Solve for x
    x = 19,070,427,337.20/154,471.48
  6. Step 6: Final answer
    x = 123,455.97

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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.