Home / 215,736.35-297,717.55-120,249.10

Finding the Fourth Proportional to 215,736.35, 297,717.55 and 120,249.10

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Solution

The fourth proportional to 215,736.35, 297,717.55 and 120,249.10 is: 165,944.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,736.35 : 297,717.55 = 120,249.10 : x
  2. Step 2: Convert to fraction form
    215,736.35/297,717.55 = 120,249.10/x
  3. Step 3: Cross multiply
    215,736.35x = 297,717.55 × 120,249.10
  4. Step 4: Simplify right side
    215,736.35x = 35,800,266,396.79
  5. Step 5: Solve for x
    x = 35,800,266,396.79/215,736.35
  6. Step 6: Final answer
    x = 165,944.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.