Home / 198,925.20-298,128.60-92,296.80

Finding the Fourth Proportional to 198,925.20, 298,128.60 and 92,296.80

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Solution

The fourth proportional to 198,925.20, 298,128.60 and 92,296.80 is: 138,324.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,925.20 : 298,128.60 = 92,296.80 : x
  2. Step 2: Convert to fraction form
    198,925.20/298,128.60 = 92,296.80/x
  3. Step 3: Cross multiply
    198,925.20x = 298,128.60 × 92,296.80
  4. Step 4: Simplify right side
    198,925.20x = 27,516,315,768.48
  5. Step 5: Solve for x
    x = 27,516,315,768.48/198,925.20
  6. Step 6: Final answer
    x = 138,324.94

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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.