Home / 128,387.13-192,532.85-44,123.43

Finding the Fourth Proportional to 128,387.13, 192,532.85 and 44,123.43

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Solution

The fourth proportional to 128,387.13, 192,532.85 and 44,123.43 is: 66,168.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,387.13 : 192,532.85 = 44,123.43 : x
  2. Step 2: Convert to fraction form
    128,387.13/192,532.85 = 44,123.43/x
  3. Step 3: Cross multiply
    128,387.13x = 192,532.85 × 44,123.43
  4. Step 4: Simplify right side
    128,387.13x = 8,495,210,396.52
  5. Step 5: Solve for x
    x = 8,495,210,396.52/128,387.13
  6. Step 6: Final answer
    x = 66,168.71

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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.