Home / 128,198.93-192,367.25-53,370.73

Finding the Fourth Proportional to 128,198.93, 192,367.25 and 53,370.73

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Solution

The fourth proportional to 128,198.93, 192,367.25 and 53,370.73 is: 80,084.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,198.93 : 192,367.25 = 53,370.73 : x
  2. Step 2: Convert to fraction form
    128,198.93/192,367.25 = 53,370.73/x
  3. Step 3: Cross multiply
    128,198.93x = 192,367.25 × 53,370.73
  4. Step 4: Simplify right side
    128,198.93x = 10,266,780,560.59
  5. Step 5: Solve for x
    x = 10,266,780,560.59/128,198.93
  6. Step 6: Final answer
    x = 80,084.76

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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.