Home / 80,168.30-120,188.36-38,027.18

Finding the Fourth Proportional to 80,168.30, 120,188.36 and 38,027.18

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Solution

The fourth proportional to 80,168.30, 120,188.36 and 38,027.18 is: 57,010.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,168.30 : 120,188.36 = 38,027.18 : x
  2. Step 2: Convert to fraction form
    80,168.30/120,188.36 = 38,027.18/x
  3. Step 3: Cross multiply
    80,168.30x = 120,188.36 × 38,027.18
  4. Step 4: Simplify right side
    80,168.30x = 4,570,424,399.62
  5. Step 5: Solve for x
    x = 4,570,424,399.62/80,168.30
  6. Step 6: Final answer
    x = 57,010.37

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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.