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Finding the Fourth Proportional to 94,057.20, 140,932.20 and 80,847.60

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Solution

The fourth proportional to 94,057.20, 140,932.20 and 80,847.60 is: 121,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,057.20 : 140,932.20 = 80,847.60 : x
  2. Step 2: Convert to fraction form
    94,057.20/140,932.20 = 80,847.60/x
  3. Step 3: Cross multiply
    94,057.20x = 140,932.20 × 80,847.60
  4. Step 4: Simplify right side
    94,057.20x = 11,394,030,132.72
  5. Step 5: Solve for x
    x = 11,394,030,132.72/94,057.20
  6. Step 6: Final answer
    x = 121,139.37

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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.