Home / 220,105.89-330,206.18-68,299.83

Finding the Fourth Proportional to 220,105.89, 330,206.18 and 68,299.83

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Solution

The fourth proportional to 220,105.89, 330,206.18 and 68,299.83 is: 102,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,105.89 : 330,206.18 = 68,299.83 : x
  2. Step 2: Convert to fraction form
    220,105.89/330,206.18 = 68,299.83/x
  3. Step 3: Cross multiply
    220,105.89x = 330,206.18 × 68,299.83
  4. Step 4: Simplify right side
    220,105.89x = 22,553,025,617.45
  5. Step 5: Solve for x
    x = 22,553,025,617.45/220,105.89
  6. Step 6: Final answer
    x = 102,464.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.