Home / 188,131.88-259,628.26-103,253.56

Finding the Fourth Proportional to 188,131.88, 259,628.26 and 103,253.56

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Solution

The fourth proportional to 188,131.88, 259,628.26 and 103,253.56 is: 142,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,131.88 : 259,628.26 = 103,253.56 : x
  2. Step 2: Convert to fraction form
    188,131.88/259,628.26 = 103,253.56/x
  3. Step 3: Cross multiply
    188,131.88x = 259,628.26 × 103,253.56
  4. Step 4: Simplify right side
    188,131.88x = 26,807,542,121.61
  5. Step 5: Solve for x
    x = 26,807,542,121.61/188,131.88
  6. Step 6: Final answer
    x = 142,493.35

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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.