Home / 139,304.28-192,321.94-84,876.98

Finding the Fourth Proportional to 139,304.28, 192,321.94 and 84,876.98

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Solution

The fourth proportional to 139,304.28, 192,321.94 and 84,876.98 is: 117,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,304.28 : 192,321.94 = 84,876.98 : x
  2. Step 2: Convert to fraction form
    139,304.28/192,321.94 = 84,876.98/x
  3. Step 3: Cross multiply
    139,304.28x = 192,321.94 × 84,876.98
  4. Step 4: Simplify right side
    139,304.28x = 16,323,705,454.94
  5. Step 5: Solve for x
    x = 16,323,705,454.94/139,304.28
  6. Step 6: Final answer
    x = 117,180.21

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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.