Home / 198,996.38-298,516.44-99,181.70

Finding the Fourth Proportional to 198,996.38, 298,516.44 and 99,181.70

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Solution

The fourth proportional to 198,996.38, 298,516.44 and 99,181.70 is: 148,783.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,996.38 : 298,516.44 = 99,181.70 : x
  2. Step 2: Convert to fraction form
    198,996.38/298,516.44 = 99,181.70/x
  3. Step 3: Cross multiply
    198,996.38x = 298,516.44 × 99,181.70
  4. Step 4: Simplify right side
    198,996.38x = 29,607,367,997.15
  5. Step 5: Solve for x
    x = 29,607,367,997.15/198,996.38
  6. Step 6: Final answer
    x = 148,783.45

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1.5x scale

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.