Home / 198,186.32-297,324.89-85,885.39

Finding the Fourth Proportional to 198,186.32, 297,324.89 and 85,885.39

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Solution

The fourth proportional to 198,186.32, 297,324.89 and 85,885.39 is: 128,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,186.32 : 297,324.89 = 85,885.39 : x
  2. Step 2: Convert to fraction form
    198,186.32/297,324.89 = 85,885.39/x
  3. Step 3: Cross multiply
    198,186.32x = 297,324.89 × 85,885.39
  4. Step 4: Simplify right side
    198,186.32x = 25,535,863,683.21
  5. Step 5: Solve for x
    x = 25,535,863,683.21/198,186.32
  6. Step 6: Final answer
    x = 128,847.76

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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.