Home / 223,845.12-308,896.92-123,236.64

Finding the Fourth Proportional to 223,845.12, 308,896.92 and 123,236.64

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Solution

The fourth proportional to 223,845.12, 308,896.92 and 123,236.64 is: 170,061.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,845.12 : 308,896.92 = 123,236.64 : x
  2. Step 2: Convert to fraction form
    223,845.12/308,896.92 = 123,236.64/x
  3. Step 3: Cross multiply
    223,845.12x = 308,896.92 × 123,236.64
  4. Step 4: Simplify right side
    223,845.12x = 38,067,418,527.15
  5. Step 5: Solve for x
    x = 38,067,418,527.15/223,845.12
  6. Step 6: Final answer
    x = 170,061.42

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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.