Home / 198,948.96-298,391.04-80,615.52

Finding the Fourth Proportional to 198,948.96, 298,391.04 and 80,615.52

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Solution

The fourth proportional to 198,948.96, 298,391.04 and 80,615.52 is: 120,910.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,948.96 : 298,391.04 = 80,615.52 : x
  2. Step 2: Convert to fraction form
    198,948.96/298,391.04 = 80,615.52/x
  3. Step 3: Cross multiply
    198,948.96x = 298,391.04 × 80,615.52
  4. Step 4: Simplify right side
    198,948.96x = 24,054,948,852.94
  5. Step 5: Solve for x
    x = 24,054,948,852.94/198,948.96
  6. Step 6: Final answer
    x = 120,910.15

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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.