Home / 187,189.91-258,322.09-102,306.97

Finding the Fourth Proportional to 187,189.91, 258,322.09 and 102,306.97

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Solution

The fourth proportional to 187,189.91, 258,322.09 and 102,306.97 is: 141,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,189.91 : 258,322.09 = 102,306.97 : x
  2. Step 2: Convert to fraction form
    187,189.91/258,322.09 = 102,306.97/x
  3. Step 3: Cross multiply
    187,189.91x = 258,322.09 × 102,306.97
  4. Step 4: Simplify right side
    187,189.91x = 26,428,150,311.97
  5. Step 5: Solve for x
    x = 26,428,150,311.97/187,189.91
  6. Step 6: Final answer
    x = 141,183.63

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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.