Home / 139,542.27-192,576.74-82,219.79

Finding the Fourth Proportional to 139,542.27, 192,576.74 and 82,219.79

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Solution

The fourth proportional to 139,542.27, 192,576.74 and 82,219.79 is: 113,468.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,542.27 : 192,576.74 = 82,219.79 : x
  2. Step 2: Convert to fraction form
    139,542.27/192,576.74 = 82,219.79/x
  3. Step 3: Cross multiply
    139,542.27x = 192,576.74 × 82,219.79
  4. Step 4: Simplify right side
    139,542.27x = 15,833,619,121.68
  5. Step 5: Solve for x
    x = 15,833,619,121.68/139,542.27
  6. Step 6: Final answer
    x = 113,468.26

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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.