Home / 139,517.61-192,542.18-75,854.04

Finding the Fourth Proportional to 139,517.61, 192,542.18 and 75,854.04

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Solution

The fourth proportional to 139,517.61, 192,542.18 and 75,854.04 is: 104,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,517.61 : 192,542.18 = 75,854.04 : x
  2. Step 2: Convert to fraction form
    139,517.61/192,542.18 = 75,854.04/x
  3. Step 3: Cross multiply
    139,517.61x = 192,542.18 × 75,854.04
  4. Step 4: Simplify right side
    139,517.61x = 14,605,102,223.41
  5. Step 5: Solve for x
    x = 14,605,102,223.41/139,517.61
  6. Step 6: Final answer
    x = 104,682.86

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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.