Home / 129,738.85-194,614.35-40,999.30

Finding the Fourth Proportional to 129,738.85, 194,614.35 and 40,999.30

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Solution

The fourth proportional to 129,738.85, 194,614.35 and 40,999.30 is: 61,500.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,738.85 : 194,614.35 = 40,999.30 : x
  2. Step 2: Convert to fraction form
    129,738.85/194,614.35 = 40,999.30/x
  3. Step 3: Cross multiply
    129,738.85x = 194,614.35 × 40,999.30
  4. Step 4: Simplify right side
    129,738.85x = 7,979,052,119.96
  5. Step 5: Solve for x
    x = 7,979,052,119.96/129,738.85
  6. Step 6: Final answer
    x = 61,500.87

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1.5x scale

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.