Home / 131,939.45-197,442-82,043.04

Finding the Fourth Proportional to 131,939.45, 197,442 and 82,043.04

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Solution

The fourth proportional to 131,939.45, 197,442 and 82,043.04 is: 122,774.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,939.45 : 197,442 = 82,043.04 : x
  2. Step 2: Convert to fraction form
    131,939.45/197,442 = 82,043.04/x
  3. Step 3: Cross multiply
    131,939.45x = 197,442 × 82,043.04
  4. Step 4: Simplify right side
    131,939.45x = 16,198,741,903.68
  5. Step 5: Solve for x
    x = 16,198,741,903.68/131,939.45
  6. Step 6: Final answer
    x = 122,774.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.