Home / 198,664.46-298,183.97-72,426.71

Finding the Fourth Proportional to 198,664.46, 298,183.97 and 72,426.71

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Solution

The fourth proportional to 198,664.46, 298,183.97 and 72,426.71 is: 108,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,664.46 : 298,183.97 = 72,426.71 : x
  2. Step 2: Convert to fraction form
    198,664.46/298,183.97 = 72,426.71/x
  3. Step 3: Cross multiply
    198,664.46x = 298,183.97 × 72,426.71
  4. Step 4: Simplify right side
    198,664.46x = 21,596,484,305.17
  5. Step 5: Solve for x
    x = 21,596,484,305.17/198,664.46
  6. Step 6: Final answer
    x = 108,708.35

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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.