Home / 215,054.73-322,144.70-108,372.87

Finding the Fourth Proportional to 215,054.73, 322,144.70 and 108,372.87

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Solution

The fourth proportional to 215,054.73, 322,144.70 and 108,372.87 is: 162,338.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,054.73 : 322,144.70 = 108,372.87 : x
  2. Step 2: Convert to fraction form
    215,054.73/322,144.70 = 108,372.87/x
  3. Step 3: Cross multiply
    215,054.73x = 322,144.70 × 108,372.87
  4. Step 4: Simplify right side
    215,054.73x = 34,911,745,152.42
  5. Step 5: Solve for x
    x = 34,911,745,152.42/215,054.73
  6. Step 6: Final answer
    x = 162,338.89

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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.