Home / 139,757.20-192,497.52-107,429.92

Finding the Fourth Proportional to 139,757.20, 192,497.52 and 107,429.92

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Solution

The fourth proportional to 139,757.20, 192,497.52 and 107,429.92 is: 147,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,757.20 : 192,497.52 = 107,429.92 : x
  2. Step 2: Convert to fraction form
    139,757.20/192,497.52 = 107,429.92/x
  3. Step 3: Cross multiply
    139,757.20x = 192,497.52 × 107,429.92
  4. Step 4: Simplify right side
    139,757.20x = 20,679,993,173.80
  5. Step 5: Solve for x
    x = 20,679,993,173.80/139,757.20
  6. Step 6: Final answer
    x = 147,970.86

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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.