Home / 80,180.25-120,267.89-38,090.62

Finding the Fourth Proportional to 80,180.25, 120,267.89 and 38,090.62

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Solution

The fourth proportional to 80,180.25, 120,267.89 and 38,090.62 is: 57,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,180.25 : 120,267.89 = 38,090.62 : x
  2. Step 2: Convert to fraction form
    80,180.25/120,267.89 = 38,090.62/x
  3. Step 3: Cross multiply
    80,180.25x = 120,267.89 × 38,090.62
  4. Step 4: Simplify right side
    80,180.25x = 4,581,078,496.19
  5. Step 5: Solve for x
    x = 4,581,078,496.19/80,180.25
  6. Step 6: Final answer
    x = 57,134.75

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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.