Home / 198,823.84-298,143.60-74,131.36

Finding the Fourth Proportional to 198,823.84, 298,143.60 and 74,131.36

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Solution

The fourth proportional to 198,823.84, 298,143.60 and 74,131.36 is: 111,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,823.84 : 298,143.60 = 74,131.36 : x
  2. Step 2: Convert to fraction form
    198,823.84/298,143.60 = 74,131.36/x
  3. Step 3: Cross multiply
    198,823.84x = 298,143.60 × 74,131.36
  4. Step 4: Simplify right side
    198,823.84x = 22,101,790,543.30
  5. Step 5: Solve for x
    x = 22,101,790,543.30/198,823.84
  6. Step 6: Final answer
    x = 111,162.68

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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.