Home / 148,855.12-205,422.39-80,873.44

Finding the Fourth Proportional to 148,855.12, 205,422.39 and 80,873.44

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Solution

The fourth proportional to 148,855.12, 205,422.39 and 80,873.44 is: 111,606.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,855.12 : 205,422.39 = 80,873.44 : x
  2. Step 2: Convert to fraction form
    148,855.12/205,422.39 = 80,873.44/x
  3. Step 3: Cross multiply
    148,855.12x = 205,422.39 × 80,873.44
  4. Step 4: Simplify right side
    148,855.12x = 16,613,214,305.21
  5. Step 5: Solve for x
    x = 16,613,214,305.21/148,855.12
  6. Step 6: Final answer
    x = 111,606.61

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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.