Home / 198,936.81-298,453.82-99,122.13

Finding the Fourth Proportional to 198,936.81, 298,453.82 and 99,122.13

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Solution

The fourth proportional to 198,936.81, 298,453.82 and 99,122.13 is: 148,707.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,936.81 : 298,453.82 = 99,122.13 : x
  2. Step 2: Convert to fraction form
    198,936.81/298,453.82 = 99,122.13/x
  3. Step 3: Cross multiply
    198,936.81x = 298,453.82 × 99,122.13
  4. Step 4: Simplify right side
    198,936.81x = 29,583,377,849.43
  5. Step 5: Solve for x
    x = 29,583,377,849.43/198,936.81
  6. Step 6: Final answer
    x = 148,707.41

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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.