Home / 215,844.10-323,766.15-84,516.10

Finding the Fourth Proportional to 215,844.10, 323,766.15 and 84,516.10

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Solution

The fourth proportional to 215,844.10, 323,766.15 and 84,516.10 is: 126,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,844.10 : 323,766.15 = 84,516.10 : x
  2. Step 2: Convert to fraction form
    215,844.10/323,766.15 = 84,516.10/x
  3. Step 3: Cross multiply
    215,844.10x = 323,766.15 × 84,516.10
  4. Step 4: Simplify right side
    215,844.10x = 27,363,452,310.02
  5. Step 5: Solve for x
    x = 27,363,452,310.02/215,844.10
  6. Step 6: Final answer
    x = 126,774.15

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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.