Home / 215,205.86-322,796.34-82,099.58

Finding the Fourth Proportional to 215,205.86, 322,796.34 and 82,099.58

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Solution

The fourth proportional to 215,205.86, 322,796.34 and 82,099.58 is: 123,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,205.86 : 322,796.34 = 82,099.58 : x
  2. Step 2: Convert to fraction form
    215,205.86/322,796.34 = 82,099.58/x
  3. Step 3: Cross multiply
    215,205.86x = 322,796.34 × 82,099.58
  4. Step 4: Simplify right side
    215,205.86x = 26,501,442,325.56
  5. Step 5: Solve for x
    x = 26,501,442,325.56/215,205.86
  6. Step 6: Final answer
    x = 123,144.61

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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.