Home / 221,052.21-331,342.25-126,077.88

Finding the Fourth Proportional to 221,052.21, 331,342.25 and 126,077.88

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Solution

The fourth proportional to 221,052.21, 331,342.25 and 126,077.88 is: 188,982.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,052.21 : 331,342.25 = 126,077.88 : x
  2. Step 2: Convert to fraction form
    221,052.21/331,342.25 = 126,077.88/x
  3. Step 3: Cross multiply
    221,052.21x = 331,342.25 × 126,077.88
  4. Step 4: Simplify right side
    221,052.21x = 41,774,929,046.57
  5. Step 5: Solve for x
    x = 41,774,929,046.57/221,052.21
  6. Step 6: Final answer
    x = 188,982.19

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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.