Home / 198,722.28-298,163.07-72,371.33

Finding the Fourth Proportional to 198,722.28, 298,163.07 and 72,371.33

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Solution

The fourth proportional to 198,722.28, 298,163.07 and 72,371.33 is: 108,586.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,722.28 : 298,163.07 = 72,371.33 : x
  2. Step 2: Convert to fraction form
    198,722.28/298,163.07 = 72,371.33/x
  3. Step 3: Cross multiply
    198,722.28x = 298,163.07 × 72,371.33
  4. Step 4: Simplify right side
    198,722.28x = 21,578,457,932.78
  5. Step 5: Solve for x
    x = 21,578,457,932.78/198,722.28
  6. Step 6: Final answer
    x = 108,586.00

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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.