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Finding the Fourth Proportional to 148,197.20, 204,510.80 and 80,212.80

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Solution

The fourth proportional to 148,197.20, 204,510.80 and 80,212.80 is: 110,692.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,197.20 : 204,510.80 = 80,212.80 : x
  2. Step 2: Convert to fraction form
    148,197.20/204,510.80 = 80,212.80/x
  3. Step 3: Cross multiply
    148,197.20x = 204,510.80 × 80,212.80
  4. Step 4: Simplify right side
    148,197.20x = 16,404,383,898.24
  5. Step 5: Solve for x
    x = 16,404,383,898.24/148,197.20
  6. Step 6: Final answer
    x = 110,692.94

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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.