Home / 221,004.76-331,556.66-80,759.80

Finding the Fourth Proportional to 221,004.76, 331,556.66 and 80,759.80

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Solution

The fourth proportional to 221,004.76, 331,556.66 and 80,759.80 is: 121,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,004.76 : 331,556.66 = 80,759.80 : x
  2. Step 2: Convert to fraction form
    221,004.76/331,556.66 = 80,759.80/x
  3. Step 3: Cross multiply
    221,004.76x = 331,556.66 × 80,759.80
  4. Step 4: Simplify right side
    221,004.76x = 26,776,449,550.27
  5. Step 5: Solve for x
    x = 26,776,449,550.27/221,004.76
  6. Step 6: Final answer
    x = 121,157.80

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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.