Home / 187,589.70-258,868.17-102,703.86

Finding the Fourth Proportional to 187,589.70, 258,868.17 and 102,703.86

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Solution

The fourth proportional to 187,589.70, 258,868.17 and 102,703.86 is: 141,728.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,589.70 : 258,868.17 = 102,703.86 : x
  2. Step 2: Convert to fraction form
    187,589.70/258,868.17 = 102,703.86/x
  3. Step 3: Cross multiply
    187,589.70x = 258,868.17 × 102,703.86
  4. Step 4: Simplify right side
    187,589.70x = 26,586,760,290.14
  5. Step 5: Solve for x
    x = 26,586,760,290.14/187,589.70
  6. Step 6: Final answer
    x = 141,728.25

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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.