Home / 198,958.46-298,408.26-72,569.12

Finding the Fourth Proportional to 198,958.46, 298,408.26 and 72,569.12

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Solution

The fourth proportional to 198,958.46, 298,408.26 and 72,569.12 is: 108,842.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,958.46 : 298,408.26 = 72,569.12 : x
  2. Step 2: Convert to fraction form
    198,958.46/298,408.26 = 72,569.12/x
  3. Step 3: Cross multiply
    198,958.46x = 298,408.26 × 72,569.12
  4. Step 4: Simplify right side
    198,958.46x = 21,655,224,828.93
  5. Step 5: Solve for x
    x = 21,655,224,828.93/198,958.46
  6. Step 6: Final answer
    x = 108,842.95

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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.