Home / 139,676.54-192,757.97-79,249.73

Finding the Fourth Proportional to 139,676.54, 192,757.97 and 79,249.73

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Solution

The fourth proportional to 139,676.54, 192,757.97 and 79,249.73 is: 109,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,676.54 : 192,757.97 = 79,249.73 : x
  2. Step 2: Convert to fraction form
    139,676.54/192,757.97 = 79,249.73/x
  3. Step 3: Cross multiply
    139,676.54x = 192,757.97 × 79,249.73
  4. Step 4: Simplify right side
    139,676.54x = 15,276,017,077.85
  5. Step 5: Solve for x
    x = 15,276,017,077.85/139,676.54
  6. Step 6: Final answer
    x = 109,367.09

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1.5x scale

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.