Home / 215,641.44-323,481.60-82,516.32

Finding the Fourth Proportional to 215,641.44, 323,481.60 and 82,516.32

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Solution

The fourth proportional to 215,641.44, 323,481.60 and 82,516.32 is: 123,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,641.44 : 323,481.60 = 82,516.32 : x
  2. Step 2: Convert to fraction form
    215,641.44/323,481.60 = 82,516.32/x
  3. Step 3: Cross multiply
    215,641.44x = 323,481.60 × 82,516.32
  4. Step 4: Simplify right side
    215,641.44x = 26,692,511,219.71
  5. Step 5: Solve for x
    x = 26,692,511,219.71/215,641.44
  6. Step 6: Final answer
    x = 123,781.92

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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.