Home / 197,540.78-296,136.20-79,131.13

Finding the Fourth Proportional to 197,540.78, 296,136.20 and 79,131.13

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Solution

The fourth proportional to 197,540.78, 296,136.20 and 79,131.13 is: 118,626.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,540.78 : 296,136.20 = 79,131.13 : x
  2. Step 2: Convert to fraction form
    197,540.78/296,136.20 = 79,131.13/x
  3. Step 3: Cross multiply
    197,540.78x = 296,136.20 × 79,131.13
  4. Step 4: Simplify right side
    197,540.78x = 23,433,591,597.39
  5. Step 5: Solve for x
    x = 23,433,591,597.39/197,540.78
  6. Step 6: Final answer
    x = 118,626.61

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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.