Home / 99,594.15-137,434.62-57,149.88

Finding the Fourth Proportional to 99,594.15, 137,434.62 and 57,149.88

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Solution

The fourth proportional to 99,594.15, 137,434.62 and 57,149.88 is: 78,863.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,594.15 : 137,434.62 = 57,149.88 : x
  2. Step 2: Convert to fraction form
    99,594.15/137,434.62 = 57,149.88/x
  3. Step 3: Cross multiply
    99,594.15x = 137,434.62 × 57,149.88
  4. Step 4: Simplify right side
    99,594.15x = 7,854,372,040.85
  5. Step 5: Solve for x
    x = 7,854,372,040.85/99,594.15
  6. Step 6: Final answer
    x = 78,863.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.