Home / 419,650.29-629,475.48-120,131.96

Finding the Fourth Proportional to 419,650.29, 629,475.48 and 120,131.96

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Solution

The fourth proportional to 419,650.29, 629,475.48 and 120,131.96 is: 180,197.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,650.29 : 629,475.48 = 120,131.96 : x
  2. Step 2: Convert to fraction form
    419,650.29/629,475.48 = 120,131.96/x
  3. Step 3: Cross multiply
    419,650.29x = 629,475.48 × 120,131.96
  4. Step 4: Simplify right side
    419,650.29x = 75,620,120,036.96
  5. Step 5: Solve for x
    x = 75,620,120,036.96/419,650.29
  6. Step 6: Final answer
    x = 180,197.95

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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.