Home / 132,439.74-198,655.16-57,559.88

Finding the Fourth Proportional to 132,439.74, 198,655.16 and 57,559.88

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Solution

The fourth proportional to 132,439.74, 198,655.16 and 57,559.88 is: 86,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,439.74 : 198,655.16 = 57,559.88 : x
  2. Step 2: Convert to fraction form
    132,439.74/198,655.16 = 57,559.88/x
  3. Step 3: Cross multiply
    132,439.74x = 198,655.16 × 57,559.88
  4. Step 4: Simplify right side
    132,439.74x = 11,434,567,170.98
  5. Step 5: Solve for x
    x = 11,434,567,170.98/132,439.74
  6. Step 6: Final answer
    x = 86,337.89

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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.