Home / 110,821.20-166,231.78-27,715.20

Finding the Fourth Proportional to 110,821.20, 166,231.78 and 27,715.20

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Solution

The fourth proportional to 110,821.20, 166,231.78 and 27,715.20 is: 41,572.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,821.20 : 166,231.78 = 27,715.20 : x
  2. Step 2: Convert to fraction form
    110,821.20/166,231.78 = 27,715.20/x
  3. Step 3: Cross multiply
    110,821.20x = 166,231.78 × 27,715.20
  4. Step 4: Simplify right side
    110,821.20x = 4,607,147,029.06
  5. Step 5: Solve for x
    x = 4,607,147,029.06/110,821.20
  6. Step 6: Final answer
    x = 41,572.79

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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.