Home / 132,872.94-199,083.90-80,171.73

Finding the Fourth Proportional to 132,872.94, 199,083.90 and 80,171.73

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Solution

The fourth proportional to 132,872.94, 199,083.90 and 80,171.73 is: 120,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,872.94 : 199,083.90 = 80,171.73 : x
  2. Step 2: Convert to fraction form
    132,872.94/199,083.90 = 80,171.73/x
  3. Step 3: Cross multiply
    132,872.94x = 199,083.90 × 80,171.73
  4. Step 4: Simplify right side
    132,872.94x = 15,960,900,678.15
  5. Step 5: Solve for x
    x = 15,960,900,678.15/132,872.94
  6. Step 6: Final answer
    x = 120,121.53

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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.