Home / 198,186.27-297,324.81-85,885.33

Finding the Fourth Proportional to 198,186.27, 297,324.81 and 85,885.33

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Solution

The fourth proportional to 198,186.27, 297,324.81 and 85,885.33 is: 128,847.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,186.27 : 297,324.81 = 85,885.33 : x
  2. Step 2: Convert to fraction form
    198,186.27/297,324.81 = 85,885.33/x
  3. Step 3: Cross multiply
    198,186.27x = 297,324.81 × 85,885.33
  4. Step 4: Simplify right side
    198,186.27x = 25,535,839,424.04
  5. Step 5: Solve for x
    x = 25,535,839,424.04/198,186.27
  6. Step 6: Final answer
    x = 128,847.67

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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.