Home / 221,521.93-332,213.18-71,727.61

Finding the Fourth Proportional to 221,521.93, 332,213.18 and 71,727.61

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Solution

The fourth proportional to 221,521.93, 332,213.18 and 71,727.61 is: 107,568.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,521.93 : 332,213.18 = 71,727.61 : x
  2. Step 2: Convert to fraction form
    221,521.93/332,213.18 = 71,727.61/x
  3. Step 3: Cross multiply
    221,521.93x = 332,213.18 × 71,727.61
  4. Step 4: Simplify right side
    221,521.93x = 23,828,857,411.90
  5. Step 5: Solve for x
    x = 23,828,857,411.90/221,521.93
  6. Step 6: Final answer
    x = 107,568.84

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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.