Home / 221,728.11-332,645.12-71,968.83

Finding the Fourth Proportional to 221,728.11, 332,645.12 and 71,968.83

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Solution

The fourth proportional to 221,728.11, 332,645.12 and 71,968.83 is: 107,970.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,728.11 : 332,645.12 = 71,968.83 : x
  2. Step 2: Convert to fraction form
    221,728.11/332,645.12 = 71,968.83/x
  3. Step 3: Cross multiply
    221,728.11x = 332,645.12 × 71,968.83
  4. Step 4: Simplify right side
    221,728.11x = 23,940,080,001.65
  5. Step 5: Solve for x
    x = 23,940,080,001.65/221,728.11
  6. Step 6: Final answer
    x = 107,970.43

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1.5x scale

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.