Home / 111,662.13-154,174.19-68,699.43

Finding the Fourth Proportional to 111,662.13, 154,174.19 and 68,699.43

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Solution

The fourth proportional to 111,662.13, 154,174.19 and 68,699.43 is: 94,854.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,662.13 : 154,174.19 = 68,699.43 : x
  2. Step 2: Convert to fraction form
    111,662.13/154,174.19 = 68,699.43/x
  3. Step 3: Cross multiply
    111,662.13x = 154,174.19 × 68,699.43
  4. Step 4: Simplify right side
    111,662.13x = 10,591,678,630.21
  5. Step 5: Solve for x
    x = 10,591,678,630.21/111,662.13
  6. Step 6: Final answer
    x = 94,854.71

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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.