Home / 132,350.73-198,509.68-78,347.55

Finding the Fourth Proportional to 132,350.73, 198,509.68 and 78,347.55

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Solution

The fourth proportional to 132,350.73, 198,509.68 and 78,347.55 is: 117,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,350.73 : 198,509.68 = 78,347.55 : x
  2. Step 2: Convert to fraction form
    132,350.73/198,509.68 = 78,347.55/x
  3. Step 3: Cross multiply
    132,350.73x = 198,509.68 × 78,347.55
  4. Step 4: Simplify right side
    132,350.73x = 15,552,747,079.28
  5. Step 5: Solve for x
    x = 15,552,747,079.28/132,350.73
  6. Step 6: Final answer
    x = 117,511.61

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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.