Home / 148,919.92-205,511.08-80,936.88

Finding the Fourth Proportional to 148,919.92, 205,511.08 and 80,936.88

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Solution

The fourth proportional to 148,919.92, 205,511.08 and 80,936.88 is: 111,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,919.92 : 205,511.08 = 80,936.88 : x
  2. Step 2: Convert to fraction form
    148,919.92/205,511.08 = 80,936.88/x
  3. Step 3: Cross multiply
    148,919.92x = 205,511.08 × 80,936.88
  4. Step 4: Simplify right side
    148,919.92x = 16,633,425,620.63
  5. Step 5: Solve for x
    x = 16,633,425,620.63/148,919.92
  6. Step 6: Final answer
    x = 111,693.76

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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.