Home / 139,787.97-192,932.67-82,423.87

Finding the Fourth Proportional to 139,787.97, 192,932.67 and 82,423.87

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Solution

The fourth proportional to 139,787.97, 192,932.67 and 82,423.87 is: 113,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,787.97 : 192,932.67 = 82,423.87 : x
  2. Step 2: Convert to fraction form
    139,787.97/192,932.67 = 82,423.87/x
  3. Step 3: Cross multiply
    139,787.97x = 192,932.67 × 82,423.87
  4. Step 4: Simplify right side
    139,787.97x = 15,902,257,310.83
  5. Step 5: Solve for x
    x = 15,902,257,310.83/139,787.97
  6. Step 6: Final answer
    x = 113,759.84

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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.