Home / 213,906.24-320,932.28-80,824.88

Finding the Fourth Proportional to 213,906.24, 320,932.28 and 80,824.88

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Solution

The fourth proportional to 213,906.24, 320,932.28 and 80,824.88 is: 121,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,906.24 : 320,932.28 = 80,824.88 : x
  2. Step 2: Convert to fraction form
    213,906.24/320,932.28 = 80,824.88/x
  3. Step 3: Cross multiply
    213,906.24x = 320,932.28 × 80,824.88
  4. Step 4: Simplify right side
    213,906.24x = 25,939,313,019.13
  5. Step 5: Solve for x
    x = 25,939,313,019.13/213,906.24
  6. Step 6: Final answer
    x = 121,264.87

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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.