Home / 128,711.40-193,092.84-44,474.64

Finding the Fourth Proportional to 128,711.40, 193,092.84 and 44,474.64

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Solution

The fourth proportional to 128,711.40, 193,092.84 and 44,474.64 is: 66,720.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,711.40 : 193,092.84 = 44,474.64 : x
  2. Step 2: Convert to fraction form
    128,711.40/193,092.84 = 44,474.64/x
  3. Step 3: Cross multiply
    128,711.40x = 193,092.84 × 44,474.64
  4. Step 4: Simplify right side
    128,711.40x = 8,587,734,545.58
  5. Step 5: Solve for x
    x = 8,587,734,545.58/128,711.40
  6. Step 6: Final answer
    x = 66,720.85

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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.