Home / 187,921.89-259,324.07-112,511.97

Finding the Fourth Proportional to 187,921.89, 259,324.07 and 112,511.97

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Solution

The fourth proportional to 187,921.89, 259,324.07 and 112,511.97 is: 155,261.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,921.89 : 259,324.07 = 112,511.97 : x
  2. Step 2: Convert to fraction form
    187,921.89/259,324.07 = 112,511.97/x
  3. Step 3: Cross multiply
    187,921.89x = 259,324.07 × 112,511.97
  4. Step 4: Simplify right side
    187,921.89x = 29,177,061,421.56
  5. Step 5: Solve for x
    x = 29,177,061,421.56/187,921.89
  6. Step 6: Final answer
    x = 155,261.64

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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.