Home / 221,725.38-332,620.89-81,473.07

Finding the Fourth Proportional to 221,725.38, 332,620.89 and 81,473.07

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Solution

The fourth proportional to 221,725.38, 332,620.89 and 81,473.07 is: 122,221.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,725.38 : 332,620.89 = 81,473.07 : x
  2. Step 2: Convert to fraction form
    221,725.38/332,620.89 = 81,473.07/x
  3. Step 3: Cross multiply
    221,725.38x = 332,620.89 × 81,473.07
  4. Step 4: Simplify right side
    221,725.38x = 27,099,645,054.43
  5. Step 5: Solve for x
    x = 27,099,645,054.43/221,725.38
  6. Step 6: Final answer
    x = 122,221.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.