Home / 215,916.33-323,916.01-82,786.21

Finding the Fourth Proportional to 215,916.33, 323,916.01 and 82,786.21

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Solution

The fourth proportional to 215,916.33, 323,916.01 and 82,786.21 is: 124,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,916.33 : 323,916.01 = 82,786.21 : x
  2. Step 2: Convert to fraction form
    215,916.33/323,916.01 = 82,786.21/x
  3. Step 3: Cross multiply
    215,916.33x = 323,916.01 × 82,786.21
  4. Step 4: Simplify right side
    215,916.33x = 26,815,778,502.89
  5. Step 5: Solve for x
    x = 26,815,778,502.89/215,916.33
  6. Step 6: Final answer
    x = 124,195.23

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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.