Home / 187,680.78-258,935.11-107,050.27

Finding the Fourth Proportional to 187,680.78, 258,935.11 and 107,050.27

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Solution

The fourth proportional to 187,680.78, 258,935.11 and 107,050.27 is: 147,692.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,680.78 : 258,935.11 = 107,050.27 : x
  2. Step 2: Convert to fraction form
    187,680.78/258,935.11 = 107,050.27/x
  3. Step 3: Cross multiply
    187,680.78x = 258,935.11 × 107,050.27
  4. Step 4: Simplify right side
    187,680.78x = 27,719,073,437.98
  5. Step 5: Solve for x
    x = 27,719,073,437.98/187,680.78
  6. Step 6: Final answer
    x = 147,692.66

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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.