Home / 80,179.75-120,267.14-38,090.12

Finding the Fourth Proportional to 80,179.75, 120,267.14 and 38,090.12

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Solution

The fourth proportional to 80,179.75, 120,267.14 and 38,090.12 is: 57,134.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,179.75 : 120,267.14 = 38,090.12 : x
  2. Step 2: Convert to fraction form
    80,179.75/120,267.14 = 38,090.12/x
  3. Step 3: Cross multiply
    80,179.75x = 120,267.14 × 38,090.12
  4. Step 4: Simplify right side
    80,179.75x = 4,580,989,794.66
  5. Step 5: Solve for x
    x = 4,580,989,794.66/80,179.75
  6. Step 6: Final answer
    x = 57,134.00

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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.