Home / 215,580.24-297,493.02-120,081.78

Finding the Fourth Proportional to 215,580.24, 297,493.02 and 120,081.78

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Solution

The fourth proportional to 215,580.24, 297,493.02 and 120,081.78 is: 165,708.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,580.24 : 297,493.02 = 120,081.78 : x
  2. Step 2: Convert to fraction form
    215,580.24/297,493.02 = 120,081.78/x
  3. Step 3: Cross multiply
    215,580.24x = 297,493.02 × 120,081.78
  4. Step 4: Simplify right side
    215,580.24x = 35,723,491,379.18
  5. Step 5: Solve for x
    x = 35,723,491,379.18/215,580.24
  6. Step 6: Final answer
    x = 165,708.56

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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.