Home / 221,061.73-331,560.21-108,711.75

Finding the Fourth Proportional to 221,061.73, 331,560.21 and 108,711.75

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Solution

The fourth proportional to 221,061.73, 331,560.21 and 108,711.75 is: 163,051.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,061.73 : 331,560.21 = 108,711.75 : x
  2. Step 2: Convert to fraction form
    221,061.73/331,560.21 = 108,711.75/x
  3. Step 3: Cross multiply
    221,061.73x = 331,560.21 × 108,711.75
  4. Step 4: Simplify right side
    221,061.73x = 36,044,489,207.20
  5. Step 5: Solve for x
    x = 36,044,489,207.20/221,061.73
  6. Step 6: Final answer
    x = 163,051.69

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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.