Home / 111,974.11-154,524.28-61,673.11

Finding the Fourth Proportional to 111,974.11, 154,524.28 and 61,673.11

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Solution

The fourth proportional to 111,974.11, 154,524.28 and 61,673.11 is: 85,108.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,974.11 : 154,524.28 = 61,673.11 : x
  2. Step 2: Convert to fraction form
    111,974.11/154,524.28 = 61,673.11/x
  3. Step 3: Cross multiply
    111,974.11x = 154,524.28 × 61,673.11
  4. Step 4: Simplify right side
    111,974.11x = 9,529,992,377.62
  5. Step 5: Solve for x
    x = 9,529,992,377.62/111,974.11
  6. Step 6: Final answer
    x = 85,108.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.