Home / 221,511.44-305,675.16-126,009.20

Finding the Fourth Proportional to 221,511.44, 305,675.16 and 126,009.20

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Solution

The fourth proportional to 221,511.44, 305,675.16 and 126,009.20 is: 173,886.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,511.44 : 305,675.16 = 126,009.20 : x
  2. Step 2: Convert to fraction form
    221,511.44/305,675.16 = 126,009.20/x
  3. Step 3: Cross multiply
    221,511.44x = 305,675.16 × 126,009.20
  4. Step 4: Simplify right side
    221,511.44x = 38,517,882,371.47
  5. Step 5: Solve for x
    x = 38,517,882,371.47/221,511.44
  6. Step 6: Final answer
    x = 173,886.65

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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.