Home / 140,685.03-194,144.82-80,255.56

Finding the Fourth Proportional to 140,685.03, 194,144.82 and 80,255.56

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Solution

The fourth proportional to 140,685.03, 194,144.82 and 80,255.56 is: 110,752.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,685.03 : 194,144.82 = 80,255.56 : x
  2. Step 2: Convert to fraction form
    140,685.03/194,144.82 = 80,255.56/x
  3. Step 3: Cross multiply
    140,685.03x = 194,144.82 × 80,255.56
  4. Step 4: Simplify right side
    140,685.03x = 15,581,201,250.20
  5. Step 5: Solve for x
    x = 15,581,201,250.20/140,685.03
  6. Step 6: Final answer
    x = 110,752.38

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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.