Home / 104,121.62-143,687.89-56,375.02

Finding the Fourth Proportional to 104,121.62, 143,687.89 and 56,375.02

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Solution

The fourth proportional to 104,121.62, 143,687.89 and 56,375.02 is: 77,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,121.62 : 143,687.89 = 56,375.02 : x
  2. Step 2: Convert to fraction form
    104,121.62/143,687.89 = 56,375.02/x
  3. Step 3: Cross multiply
    104,121.62x = 143,687.89 × 56,375.02
  4. Step 4: Simplify right side
    104,121.62x = 8,100,407,922.59
  5. Step 5: Solve for x
    x = 8,100,407,922.59/104,121.62
  6. Step 6: Final answer
    x = 77,797.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.