Home / 139,540.19-192,542.10-82,190.94

Finding the Fourth Proportional to 139,540.19, 192,542.10 and 82,190.94

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Solution

The fourth proportional to 139,540.19, 192,542.10 and 82,190.94 is: 113,409.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,540.19 : 192,542.10 = 82,190.94 : x
  2. Step 2: Convert to fraction form
    139,540.19/192,542.10 = 82,190.94/x
  3. Step 3: Cross multiply
    139,540.19x = 192,542.10 × 82,190.94
  4. Step 4: Simplify right side
    139,540.19x = 15,825,215,158.33
  5. Step 5: Solve for x
    x = 15,825,215,158.33/139,540.19
  6. Step 6: Final answer
    x = 113,409.73

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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.