Home / 198,136.57-273,428.43-113,255.45

Finding the Fourth Proportional to 198,136.57, 273,428.43 and 113,255.45

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Solution

The fourth proportional to 198,136.57, 273,428.43 and 113,255.45 is: 156,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,136.57 : 273,428.43 = 113,255.45 : x
  2. Step 2: Convert to fraction form
    198,136.57/273,428.43 = 113,255.45/x
  3. Step 3: Cross multiply
    198,136.57x = 273,428.43 × 113,255.45
  4. Step 4: Simplify right side
    198,136.57x = 30,967,259,882.44
  5. Step 5: Solve for x
    x = 30,967,259,882.44/198,136.57
  6. Step 6: Final answer
    x = 156,292.50

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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.