Home / 198,813.97-298,211.23-74,145.25

Finding the Fourth Proportional to 198,813.97, 298,211.23 and 74,145.25

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Solution

The fourth proportional to 198,813.97, 298,211.23 and 74,145.25 is: 111,214.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,813.97 : 298,211.23 = 74,145.25 : x
  2. Step 2: Convert to fraction form
    198,813.97/298,211.23 = 74,145.25/x
  3. Step 3: Cross multiply
    198,813.97x = 298,211.23 × 74,145.25
  4. Step 4: Simplify right side
    198,813.97x = 22,110,946,201.16
  5. Step 5: Solve for x
    x = 22,110,946,201.16/198,813.97
  6. Step 6: Final answer
    x = 111,214.25

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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.