Home / 120,716.80-181,002.48-54,144.88

Finding the Fourth Proportional to 120,716.80, 181,002.48 and 54,144.88

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Solution

The fourth proportional to 120,716.80, 181,002.48 and 54,144.88 is: 81,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,716.80 : 181,002.48 = 54,144.88 : x
  2. Step 2: Convert to fraction form
    120,716.80/181,002.48 = 54,144.88/x
  3. Step 3: Cross multiply
    120,716.80x = 181,002.48 × 54,144.88
  4. Step 4: Simplify right side
    120,716.80x = 9,800,357,559.30
  5. Step 5: Solve for x
    x = 9,800,357,559.30/120,716.80
  6. Step 6: Final answer
    x = 81,184.70

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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.