Home / 215,974.10-323,961.15-103,635.20

Finding the Fourth Proportional to 215,974.10, 323,961.15 and 103,635.20

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Solution

The fourth proportional to 215,974.10, 323,961.15 and 103,635.20 is: 155,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,974.10 : 323,961.15 = 103,635.20 : x
  2. Step 2: Convert to fraction form
    215,974.10/323,961.15 = 103,635.20/x
  3. Step 3: Cross multiply
    215,974.10x = 323,961.15 × 103,635.20
  4. Step 4: Simplify right side
    215,974.10x = 33,573,778,572.48
  5. Step 5: Solve for x
    x = 33,573,778,572.48/215,974.10
  6. Step 6: Final answer
    x = 155,452.80

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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.