Home / 215,916.58-323,916.39-82,786.46

Finding the Fourth Proportional to 215,916.58, 323,916.39 and 82,786.46

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Solution

The fourth proportional to 215,916.58, 323,916.39 and 82,786.46 is: 124,195.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.58 : 323,916.39 = 82,786.46 : x
  2. Step 2: Convert to fraction form
    215,916.58/323,916.39 = 82,786.46/x
  3. Step 3: Cross multiply
    215,916.58x = 323,916.39 × 82,786.46
  4. Step 4: Simplify right side
    215,916.58x = 26,815,890,755.70
  5. Step 5: Solve for x
    x = 26,815,890,755.70/215,916.58
  6. Step 6: Final answer
    x = 124,195.61

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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.