Home / 221,786.98-306,065.72-126,293.70

Finding the Fourth Proportional to 221,786.98, 306,065.72 and 126,293.70

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Solution

The fourth proportional to 221,786.98, 306,065.72 and 126,293.70 is: 174,285.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,786.98 : 306,065.72 = 126,293.70 : x
  2. Step 2: Convert to fraction form
    221,786.98/306,065.72 = 126,293.70/x
  3. Step 3: Cross multiply
    221,786.98x = 306,065.72 × 126,293.70
  4. Step 4: Simplify right side
    221,786.98x = 38,654,172,221.96
  5. Step 5: Solve for x
    x = 38,654,172,221.96/221,786.98
  6. Step 6: Final answer
    x = 174,285.13

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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.