Home / 187,571.82-258,849.87-102,696.78

Finding the Fourth Proportional to 187,571.82, 258,849.87 and 102,696.78

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Solution

The fourth proportional to 187,571.82, 258,849.87 and 102,696.78 is: 141,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,571.82 : 258,849.87 = 102,696.78 : x
  2. Step 2: Convert to fraction form
    187,571.82/258,849.87 = 102,696.78/x
  3. Step 3: Cross multiply
    187,571.82x = 258,849.87 × 102,696.78
  4. Step 4: Simplify right side
    187,571.82x = 26,583,048,152.42
  5. Step 5: Solve for x
    x = 26,583,048,152.42/187,571.82
  6. Step 6: Final answer
    x = 141,721.97

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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.