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Finding the Fourth Proportional to 132,600.80, 198,728.40 and 53,650.40

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Solution

The fourth proportional to 132,600.80, 198,728.40 and 53,650.40 is: 80,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,600.80 : 198,728.40 = 53,650.40 : x
  2. Step 2: Convert to fraction form
    132,600.80/198,728.40 = 53,650.40/x
  3. Step 3: Cross multiply
    132,600.80x = 198,728.40 × 53,650.40
  4. Step 4: Simplify right side
    132,600.80x = 10,661,858,151.36
  5. Step 5: Solve for x
    x = 10,661,858,151.36/132,600.80
  6. Step 6: Final answer
    x = 80,405.68

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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.