Home / 221,519.66-305,704.05-126,040.10

Finding the Fourth Proportional to 221,519.66, 305,704.05 and 126,040.10

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Solution

The fourth proportional to 221,519.66, 305,704.05 and 126,040.10 is: 173,939.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,519.66 : 305,704.05 = 126,040.10 : x
  2. Step 2: Convert to fraction form
    221,519.66/305,704.05 = 126,040.10/x
  3. Step 3: Cross multiply
    221,519.66x = 305,704.05 × 126,040.10
  4. Step 4: Simplify right side
    221,519.66x = 38,530,969,032.41
  5. Step 5: Solve for x
    x = 38,530,969,032.41/221,519.66
  6. Step 6: Final answer
    x = 173,939.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.