Home / 198,221.06-273,772.10-130,540.57

Finding the Fourth Proportional to 198,221.06, 273,772.10 and 130,540.57

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Solution

The fourth proportional to 198,221.06, 273,772.10 and 130,540.57 is: 180,295.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,221.06 : 273,772.10 = 130,540.57 : x
  2. Step 2: Convert to fraction form
    198,221.06/273,772.10 = 130,540.57/x
  3. Step 3: Cross multiply
    198,221.06x = 273,772.10 × 130,540.57
  4. Step 4: Simplify right side
    198,221.06x = 35,738,365,626.02
  5. Step 5: Solve for x
    x = 35,738,365,626.02/198,221.06
  6. Step 6: Final answer
    x = 180,295.50

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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.