Home / 140,711.04-194,163.21-80,278.20

Finding the Fourth Proportional to 140,711.04, 194,163.21 and 80,278.20

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Solution

The fourth proportional to 140,711.04, 194,163.21 and 80,278.20 is: 110,773.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,711.04 : 194,163.21 = 80,278.20 : x
  2. Step 2: Convert to fraction form
    140,711.04/194,163.21 = 80,278.20/x
  3. Step 3: Cross multiply
    140,711.04x = 194,163.21 × 80,278.20
  4. Step 4: Simplify right side
    140,711.04x = 15,587,073,005.02
  5. Step 5: Solve for x
    x = 15,587,073,005.02/140,711.04
  6. Step 6: Final answer
    x = 110,773.63

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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.