Home / 80,130.60-120,190.23-27,538.92

Finding the Fourth Proportional to 80,130.60, 120,190.23 and 27,538.92

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Solution

The fourth proportional to 80,130.60, 120,190.23 and 27,538.92 is: 41,306.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,130.60 : 120,190.23 = 27,538.92 : x
  2. Step 2: Convert to fraction form
    80,130.60/120,190.23 = 27,538.92/x
  3. Step 3: Cross multiply
    80,130.60x = 120,190.23 × 27,538.92
  4. Step 4: Simplify right side
    80,130.60x = 3,309,909,128.75
  5. Step 5: Solve for x
    x = 3,309,909,128.75/80,130.60
  6. Step 6: Final answer
    x = 41,306.43

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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.