Home / 189,378.27-261,329.09-104,496.75

Finding the Fourth Proportional to 189,378.27, 261,329.09 and 104,496.75

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Solution

The fourth proportional to 189,378.27, 261,329.09 and 104,496.75 is: 144,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,378.27 : 261,329.09 = 104,496.75 : x
  2. Step 2: Convert to fraction form
    189,378.27/261,329.09 = 104,496.75/x
  3. Step 3: Cross multiply
    189,378.27x = 261,329.09 × 104,496.75
  4. Step 4: Simplify right side
    189,378.27x = 27,308,040,062.97
  5. Step 5: Solve for x
    x = 27,308,040,062.97/189,378.27
  6. Step 6: Final answer
    x = 144,198.38

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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.