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Finding the Fourth Proportional to 187,958.97, 259,359.48 and 107,391.71

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Solution

The fourth proportional to 187,958.97, 259,359.48 and 107,391.71 is: 148,186.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,958.97 : 259,359.48 = 107,391.71 : x
  2. Step 2: Convert to fraction form
    187,958.97/259,359.48 = 107,391.71/x
  3. Step 3: Cross multiply
    187,958.97x = 259,359.48 × 107,391.71
  4. Step 4: Simplify right side
    187,958.97x = 27,853,057,524.95
  5. Step 5: Solve for x
    x = 27,853,057,524.95/187,958.97
  6. Step 6: Final answer
    x = 148,186.90

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1.5x scale

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.