Home / 198,912.60-298,177.20-127,634.22

Finding the Fourth Proportional to 198,912.60, 298,177.20 and 127,634.22

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Solution

The fourth proportional to 198,912.60, 298,177.20 and 127,634.22 is: 191,328.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,912.60 : 298,177.20 = 127,634.22 : x
  2. Step 2: Convert to fraction form
    198,912.60/298,177.20 = 127,634.22/x
  3. Step 3: Cross multiply
    198,912.60x = 298,177.20 × 127,634.22
  4. Step 4: Simplify right side
    198,912.60x = 38,057,614,343.78
  5. Step 5: Solve for x
    x = 38,057,614,343.78/198,912.60
  6. Step 6: Final answer
    x = 191,328.32

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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.