Home / 215,207.86-322,799.34-82,101.58

Finding the Fourth Proportional to 215,207.86, 322,799.34 and 82,101.58

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Solution

The fourth proportional to 215,207.86, 322,799.34 and 82,101.58 is: 123,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,207.86 : 322,799.34 = 82,101.58 : x
  2. Step 2: Convert to fraction form
    215,207.86/322,799.34 = 82,101.58/x
  3. Step 3: Cross multiply
    215,207.86x = 322,799.34 × 82,101.58
  4. Step 4: Simplify right side
    215,207.86x = 26,502,335,836.96
  5. Step 5: Solve for x
    x = 26,502,335,836.96/215,207.86
  6. Step 6: Final answer
    x = 123,147.62

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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.