Home / 198,652.50-298,166.01-72,414.75

Finding the Fourth Proportional to 198,652.50, 298,166.01 and 72,414.75

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Solution

The fourth proportional to 198,652.50, 298,166.01 and 72,414.75 is: 108,690.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,652.50 : 298,166.01 = 72,414.75 : x
  2. Step 2: Convert to fraction form
    198,652.50/298,166.01 = 72,414.75/x
  3. Step 3: Cross multiply
    198,652.50x = 298,166.01 × 72,414.75
  4. Step 4: Simplify right side
    198,652.50x = 21,591,617,072.65
  5. Step 5: Solve for x
    x = 21,591,617,072.65/198,652.50
  6. Step 6: Final answer
    x = 108,690.39

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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.