Home / 198,974.08-298,273.46-99,039.78

Finding the Fourth Proportional to 198,974.08, 298,273.46 and 99,039.78

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Solution

The fourth proportional to 198,974.08, 298,273.46 and 99,039.78 is: 148,466.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,974.08 : 298,273.46 = 99,039.78 : x
  2. Step 2: Convert to fraction form
    198,974.08/298,273.46 = 99,039.78/x
  3. Step 3: Cross multiply
    198,974.08x = 298,273.46 × 99,039.78
  4. Step 4: Simplify right side
    198,974.08x = 29,540,937,858.24
  5. Step 5: Solve for x
    x = 29,540,937,858.24/198,974.08
  6. Step 6: Final answer
    x = 148,466.26

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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.