Home / 141,031.17-194,610.69-80,589.78

Finding the Fourth Proportional to 141,031.17, 194,610.69 and 80,589.78

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Solution

The fourth proportional to 141,031.17, 194,610.69 and 80,589.78 is: 111,206.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,031.17 : 194,610.69 = 80,589.78 : x
  2. Step 2: Convert to fraction form
    141,031.17/194,610.69 = 80,589.78/x
  3. Step 3: Cross multiply
    141,031.17x = 194,610.69 × 80,589.78
  4. Step 4: Simplify right side
    141,031.17x = 15,683,632,692.75
  5. Step 5: Solve for x
    x = 15,683,632,692.75/141,031.17
  6. Step 6: Final answer
    x = 111,206.85

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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.