Home / 215,414.10-323,135.55-73,257.30

Finding the Fourth Proportional to 215,414.10, 323,135.55 and 73,257.30

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Solution

The fourth proportional to 215,414.10, 323,135.55 and 73,257.30 is: 109,890.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,414.10 : 323,135.55 = 73,257.30 : x
  2. Step 2: Convert to fraction form
    215,414.10/323,135.55 = 73,257.30/x
  3. Step 3: Cross multiply
    215,414.10x = 323,135.55 × 73,257.30
  4. Step 4: Simplify right side
    215,414.10x = 23,672,037,927.02
  5. Step 5: Solve for x
    x = 23,672,037,927.02/215,414.10
  6. Step 6: Final answer
    x = 109,890.85

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1.5x scale

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.