Home / 83,932.15-125,898.23-80,706.55

Finding the Fourth Proportional to 83,932.15, 125,898.23 and 80,706.55

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Solution

The fourth proportional to 83,932.15, 125,898.23 and 80,706.55 is: 121,059.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,932.15 : 125,898.23 = 80,706.55 : x
  2. Step 2: Convert to fraction form
    83,932.15/125,898.23 = 80,706.55/x
  3. Step 3: Cross multiply
    83,932.15x = 125,898.23 × 80,706.55
  4. Step 4: Simplify right side
    83,932.15x = 10,160,811,390.87
  5. Step 5: Solve for x
    x = 10,160,811,390.87/83,932.15
  6. Step 6: Final answer
    x = 121,059.83

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1.5x scale

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.