Home / 189,520.33-261,537.99-108,963.61

Finding the Fourth Proportional to 189,520.33, 261,537.99 and 108,963.61

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Solution

The fourth proportional to 189,520.33, 261,537.99 and 108,963.61 is: 150,369.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,520.33 : 261,537.99 = 108,963.61 : x
  2. Step 2: Convert to fraction form
    189,520.33/261,537.99 = 108,963.61/x
  3. Step 3: Cross multiply
    189,520.33x = 261,537.99 × 108,963.61
  4. Step 4: Simplify right side
    189,520.33x = 28,498,123,542.54
  5. Step 5: Solve for x
    x = 28,498,123,542.54/189,520.33
  6. Step 6: Final answer
    x = 150,369.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.