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Finding the Fourth Proportional to 111,809.08, 167,742.78 and 41,689

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Solution

The fourth proportional to 111,809.08, 167,742.78 and 41,689 is: 62,544.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,809.08 : 167,742.78 = 41,689 : x
  2. Step 2: Convert to fraction form
    111,809.08/167,742.78 = 41,689/x
  3. Step 3: Cross multiply
    111,809.08x = 167,742.78 × 41,689
  4. Step 4: Simplify right side
    111,809.08x = 6,993,028,755.42
  5. Step 5: Solve for x
    x = 6,993,028,755.42/111,809.08
  6. Step 6: Final answer
    x = 62,544.37

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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.