Home / 221,726.43-306,037.17-126,289.53

Finding the Fourth Proportional to 221,726.43, 306,037.17 and 126,289.53

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Solution

The fourth proportional to 221,726.43, 306,037.17 and 126,289.53 is: 174,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,726.43 : 306,037.17 = 126,289.53 : x
  2. Step 2: Convert to fraction form
    221,726.43/306,037.17 = 126,289.53/x
  3. Step 3: Cross multiply
    221,726.43x = 306,037.17 × 126,289.53
  4. Step 4: Simplify right side
    221,726.43x = 38,649,290,361.83
  5. Step 5: Solve for x
    x = 38,649,290,361.83/221,726.43
  6. Step 6: Final answer
    x = 174,310.71

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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.