Home / 198,571.05-298,004.23-80,243.42

Finding the Fourth Proportional to 198,571.05, 298,004.23 and 80,243.42

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Solution

The fourth proportional to 198,571.05, 298,004.23 and 80,243.42 is: 120,424.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,571.05 : 298,004.23 = 80,243.42 : x
  2. Step 2: Convert to fraction form
    198,571.05/298,004.23 = 80,243.42/x
  3. Step 3: Cross multiply
    198,571.05x = 298,004.23 × 80,243.42
  4. Step 4: Simplify right side
    198,571.05x = 23,912,877,199.95
  5. Step 5: Solve for x
    x = 23,912,877,199.95/198,571.05
  6. Step 6: Final answer
    x = 120,424.79

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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.