Home / 139,788.97-192,934.05-82,424.87

Finding the Fourth Proportional to 139,788.97, 192,934.05 and 82,424.87

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Solution

The fourth proportional to 139,788.97, 192,934.05 and 82,424.87 is: 113,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,788.97 : 192,934.05 = 82,424.87 : x
  2. Step 2: Convert to fraction form
    139,788.97/192,934.05 = 82,424.87/x
  3. Step 3: Cross multiply
    139,788.97x = 192,934.05 × 82,424.87
  4. Step 4: Simplify right side
    139,788.97x = 15,902,563,989.82
  5. Step 5: Solve for x
    x = 15,902,563,989.82/139,788.97
  6. Step 6: Final answer
    x = 113,761.22

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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.