Home / 139,747.92-192,835.44-82,343.76

Finding the Fourth Proportional to 139,747.92, 192,835.44 and 82,343.76

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Solution

The fourth proportional to 139,747.92, 192,835.44 and 82,343.76 is: 113,624.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,747.92 : 192,835.44 = 82,343.76 : x
  2. Step 2: Convert to fraction form
    139,747.92/192,835.44 = 82,343.76/x
  3. Step 3: Cross multiply
    139,747.92x = 192,835.44 × 82,343.76
  4. Step 4: Simplify right side
    139,747.92x = 15,878,795,190.85
  5. Step 5: Solve for x
    x = 15,878,795,190.85/139,747.92
  6. Step 6: Final answer
    x = 113,624.55

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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.