Home / 198,876.18-298,351.38-65,850.09

Finding the Fourth Proportional to 198,876.18, 298,351.38 and 65,850.09

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Solution

The fourth proportional to 198,876.18, 298,351.38 and 65,850.09 is: 98,787.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,876.18 : 298,351.38 = 65,850.09 : x
  2. Step 2: Convert to fraction form
    198,876.18/298,351.38 = 65,850.09/x
  3. Step 3: Cross multiply
    198,876.18x = 298,351.38 × 65,850.09
  4. Step 4: Simplify right side
    198,876.18x = 19,646,464,352.74
  5. Step 5: Solve for x
    x = 19,646,464,352.74/198,876.18
  6. Step 6: Final answer
    x = 98,787.42

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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.