Home / 139,546.28-192,582.26-82,223.80

Finding the Fourth Proportional to 139,546.28, 192,582.26 and 82,223.80

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Solution

The fourth proportional to 139,546.28, 192,582.26 and 82,223.80 is: 113,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,546.28 : 192,582.26 = 82,223.80 : x
  2. Step 2: Convert to fraction form
    139,546.28/192,582.26 = 82,223.80/x
  3. Step 3: Cross multiply
    139,546.28x = 192,582.26 × 82,223.80
  4. Step 4: Simplify right side
    139,546.28x = 15,834,845,229.79
  5. Step 5: Solve for x
    x = 15,834,845,229.79/139,546.28
  6. Step 6: Final answer
    x = 113,473.79

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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.