Home / 189,716.26-261,805.26-103,673.35

Finding the Fourth Proportional to 189,716.26, 261,805.26 and 103,673.35

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Solution

The fourth proportional to 189,716.26, 261,805.26 and 103,673.35 is: 143,067.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,716.26 : 261,805.26 = 103,673.35 : x
  2. Step 2: Convert to fraction form
    189,716.26/261,805.26 = 103,673.35/x
  3. Step 3: Cross multiply
    189,716.26x = 261,805.26 × 103,673.35
  4. Step 4: Simplify right side
    189,716.26x = 27,142,228,351.82
  5. Step 5: Solve for x
    x = 27,142,228,351.82/189,716.26
  6. Step 6: Final answer
    x = 143,067.49

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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.