Home / 215,865.06-323,841.33-82,749.66

Finding the Fourth Proportional to 215,865.06, 323,841.33 and 82,749.66

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Solution

The fourth proportional to 215,865.06, 323,841.33 and 82,749.66 is: 124,141.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,865.06 : 323,841.33 = 82,749.66 : x
  2. Step 2: Convert to fraction form
    215,865.06/323,841.33 = 82,749.66/x
  3. Step 3: Cross multiply
    215,865.06x = 323,841.33 × 82,749.66
  4. Step 4: Simplify right side
    215,865.06x = 26,797,759,951.45
  5. Step 5: Solve for x
    x = 26,797,759,951.45/215,865.06
  6. Step 6: Final answer
    x = 124,141.26

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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.