Home / 140,908.87-194,450.20-80,478.26

Finding the Fourth Proportional to 140,908.87, 194,450.20 and 80,478.26

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Solution

The fourth proportional to 140,908.87, 194,450.20 and 80,478.26 is: 111,057.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,908.87 : 194,450.20 = 80,478.26 : x
  2. Step 2: Convert to fraction form
    140,908.87/194,450.20 = 80,478.26/x
  3. Step 3: Cross multiply
    140,908.87x = 194,450.20 × 80,478.26
  4. Step 4: Simplify right side
    140,908.87x = 15,649,013,350.26
  5. Step 5: Solve for x
    x = 15,649,013,350.26/140,908.87
  6. Step 6: Final answer
    x = 111,057.69

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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.