Home / 187,198.74-258,448.73-121,849.83

Finding the Fourth Proportional to 187,198.74, 258,448.73 and 121,849.83

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Solution

The fourth proportional to 187,198.74, 258,448.73 and 121,849.83 is: 168,227.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,198.74 : 258,448.73 = 121,849.83 : x
  2. Step 2: Convert to fraction form
    187,198.74/258,448.73 = 121,849.83/x
  3. Step 3: Cross multiply
    187,198.74x = 258,448.73 × 121,849.83
  4. Step 4: Simplify right side
    187,198.74x = 31,491,933,204.97
  5. Step 5: Solve for x
    x = 31,491,933,204.97/187,198.74
  6. Step 6: Final answer
    x = 168,227.27

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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.