Home / 187,589.22-258,862.87-102,689.86

Finding the Fourth Proportional to 187,589.22, 258,862.87 and 102,689.86

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Solution

The fourth proportional to 187,589.22, 258,862.87 and 102,689.86 is: 141,706.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,589.22 : 258,862.87 = 102,689.86 : x
  2. Step 2: Convert to fraction form
    187,589.22/258,862.87 = 102,689.86/x
  3. Step 3: Cross multiply
    187,589.22x = 258,862.87 × 102,689.86
  4. Step 4: Simplify right side
    187,589.22x = 26,582,591,879.50
  5. Step 5: Solve for x
    x = 26,582,591,879.50/187,589.22
  6. Step 6: Final answer
    x = 141,706.39

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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.