Home / 129,738.35-194,613.60-40,998.80

Finding the Fourth Proportional to 129,738.35, 194,613.60 and 40,998.80

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Solution

The fourth proportional to 129,738.35, 194,613.60 and 40,998.80 is: 61,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,738.35 : 194,613.60 = 40,998.80 : x
  2. Step 2: Convert to fraction form
    129,738.35/194,613.60 = 40,998.80/x
  3. Step 3: Cross multiply
    129,738.35x = 194,613.60 × 40,998.80
  4. Step 4: Simplify right side
    129,738.35x = 7,978,924,063.68
  5. Step 5: Solve for x
    x = 7,978,924,063.68/129,738.35
  6. Step 6: Final answer
    x = 61,500.12

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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.