Home / 198,136.82-273,428.78-113,255.70

Finding the Fourth Proportional to 198,136.82, 273,428.78 and 113,255.70

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Solution

The fourth proportional to 198,136.82, 273,428.78 and 113,255.70 is: 156,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,136.82 : 273,428.78 = 113,255.70 : x
  2. Step 2: Convert to fraction form
    198,136.82/273,428.78 = 113,255.70/x
  3. Step 3: Cross multiply
    198,136.82x = 273,428.78 × 113,255.70
  4. Step 4: Simplify right side
    198,136.82x = 30,967,367,312.77
  5. Step 5: Solve for x
    x = 30,967,367,312.77/198,136.82
  6. Step 6: Final answer
    x = 156,292.85

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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.