Home / 215,906.06-297,949.78-120,412.87

Finding the Fourth Proportional to 215,906.06, 297,949.78 and 120,412.87

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Solution

The fourth proportional to 215,906.06, 297,949.78 and 120,412.87 is: 166,169.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,906.06 : 297,949.78 = 120,412.87 : x
  2. Step 2: Convert to fraction form
    215,906.06/297,949.78 = 120,412.87/x
  3. Step 3: Cross multiply
    215,906.06x = 297,949.78 × 120,412.87
  4. Step 4: Simplify right side
    215,906.06x = 35,876,988,125.67
  5. Step 5: Solve for x
    x = 35,876,988,125.67/215,906.06
  6. Step 6: Final answer
    x = 166,169.44

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1.5x scale

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.