Home / 139,835.28-192,963.59-82,461.44

Finding the Fourth Proportional to 139,835.28, 192,963.59 and 82,461.44

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Solution

The fourth proportional to 139,835.28, 192,963.59 and 82,461.44 is: 113,791.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,835.28 : 192,963.59 = 82,461.44 : x
  2. Step 2: Convert to fraction form
    139,835.28/192,963.59 = 82,461.44/x
  3. Step 3: Cross multiply
    139,835.28x = 192,963.59 × 82,461.44
  4. Step 4: Simplify right side
    139,835.28x = 15,912,055,498.97
  5. Step 5: Solve for x
    x = 15,912,055,498.97/139,835.28
  6. Step 6: Final answer
    x = 113,791.42

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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.