Home / 198,091.20-296,733.60-122,980.80

Finding the Fourth Proportional to 198,091.20, 296,733.60 and 122,980.80

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Solution

The fourth proportional to 198,091.20, 296,733.60 and 122,980.80 is: 184,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,091.20 : 296,733.60 = 122,980.80 : x
  2. Step 2: Convert to fraction form
    198,091.20/296,733.60 = 122,980.80/x
  3. Step 3: Cross multiply
    198,091.20x = 296,733.60 × 122,980.80
  4. Step 4: Simplify right side
    198,091.20x = 36,492,535,514.88
  5. Step 5: Solve for x
    x = 36,492,535,514.88/198,091.20
  6. Step 6: Final answer
    x = 184,220.88

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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.