Home / 198,591.20-274,119.60-127,163.60

Finding the Fourth Proportional to 198,591.20, 274,119.60 and 127,163.60

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Solution

The fourth proportional to 198,591.20, 274,119.60 and 127,163.60 is: 175,526.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,591.20 : 274,119.60 = 127,163.60 : x
  2. Step 2: Convert to fraction form
    198,591.20/274,119.60 = 127,163.60/x
  3. Step 3: Cross multiply
    198,591.20x = 274,119.60 × 127,163.60
  4. Step 4: Simplify right side
    198,591.20x = 34,858,035,166.56
  5. Step 5: Solve for x
    x = 34,858,035,166.56/198,591.20
  6. Step 6: Final answer
    x = 175,526.59

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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.