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Finding the Fourth Proportional to 136,280.80, 204,542.70 and 80,050.60

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Solution

The fourth proportional to 136,280.80, 204,542.70 and 80,050.60 is: 120,147.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,280.80 : 204,542.70 = 80,050.60 : x
  2. Step 2: Convert to fraction form
    136,280.80/204,542.70 = 80,050.60/x
  3. Step 3: Cross multiply
    136,280.80x = 204,542.70 × 80,050.60
  4. Step 4: Simplify right side
    136,280.80x = 16,373,765,860.62
  5. Step 5: Solve for x
    x = 16,373,765,860.62/136,280.80
  6. Step 6: Final answer
    x = 120,147.27

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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.