Home / 221,787.12-306,065.92-126,293.82

Finding the Fourth Proportional to 221,787.12, 306,065.92 and 126,293.82

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Solution

The fourth proportional to 221,787.12, 306,065.92 and 126,293.82 is: 174,285.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,787.12 : 306,065.92 = 126,293.82 : x
  2. Step 2: Convert to fraction form
    221,787.12/306,065.92 = 126,293.82/x
  3. Step 3: Cross multiply
    221,787.12x = 306,065.92 × 126,293.82
  4. Step 4: Simplify right side
    221,787.12x = 38,654,234,208.61
  5. Step 5: Solve for x
    x = 38,654,234,208.61/221,787.12
  6. Step 6: Final answer
    x = 174,285.30

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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.