Home / 215,589.14-323,138.45-131,163.20

Finding the Fourth Proportional to 215,589.14, 323,138.45 and 131,163.20

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Solution

The fourth proportional to 215,589.14, 323,138.45 and 131,163.20 is: 196,595.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,589.14 : 323,138.45 = 131,163.20 : x
  2. Step 2: Convert to fraction form
    215,589.14/323,138.45 = 131,163.20/x
  3. Step 3: Cross multiply
    215,589.14x = 323,138.45 × 131,163.20
  4. Step 4: Simplify right side
    215,589.14x = 42,383,870,873.53
  5. Step 5: Solve for x
    x = 42,383,870,873.53/215,589.14
  6. Step 6: Final answer
    x = 196,595.58

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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.