Home / 139,375.94-192,316-82,063.56

Finding the Fourth Proportional to 139,375.94, 192,316 and 82,063.56

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Solution

The fourth proportional to 139,375.94, 192,316 and 82,063.56 is: 113,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,375.94 : 192,316 = 82,063.56 : x
  2. Step 2: Convert to fraction form
    139,375.94/192,316 = 82,063.56/x
  3. Step 3: Cross multiply
    139,375.94x = 192,316 × 82,063.56
  4. Step 4: Simplify right side
    139,375.94x = 15,782,135,604.96
  5. Step 5: Solve for x
    x = 15,782,135,604.96/139,375.94
  6. Step 6: Final answer
    x = 113,234.29

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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.