Home / 198,629.75-297,850.98-72,181.07

Finding the Fourth Proportional to 198,629.75, 297,850.98 and 72,181.07

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Solution

The fourth proportional to 198,629.75, 297,850.98 and 72,181.07 is: 108,237.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,629.75 : 297,850.98 = 72,181.07 : x
  2. Step 2: Convert to fraction form
    198,629.75/297,850.98 = 72,181.07/x
  3. Step 3: Cross multiply
    198,629.75x = 297,850.98 × 72,181.07
  4. Step 4: Simplify right side
    198,629.75x = 21,499,202,436.95
  5. Step 5: Solve for x
    x = 21,499,202,436.95/198,629.75
  6. Step 6: Final answer
    x = 108,237.57

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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.