Home / 148,919.12-205,508.37-80,936.24

Finding the Fourth Proportional to 148,919.12, 205,508.37 and 80,936.24

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Solution

The fourth proportional to 148,919.12, 205,508.37 and 80,936.24 is: 111,692.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,919.12 : 205,508.37 = 80,936.24 : x
  2. Step 2: Convert to fraction form
    148,919.12/205,508.37 = 80,936.24/x
  3. Step 3: Cross multiply
    148,919.12x = 205,508.37 × 80,936.24
  4. Step 4: Simplify right side
    148,919.12x = 16,633,074,351.65
  5. Step 5: Solve for x
    x = 16,633,074,351.65/148,919.12
  6. Step 6: Final answer
    x = 111,692.00

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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.