Home / 187,069.20-258,145.83-102,169.86

Finding the Fourth Proportional to 187,069.20, 258,145.83 and 102,169.86

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Solution

The fourth proportional to 187,069.20, 258,145.83 and 102,169.86 is: 140,989.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,069.20 : 258,145.83 = 102,169.86 : x
  2. Step 2: Convert to fraction form
    187,069.20/258,145.83 = 102,169.86/x
  3. Step 3: Cross multiply
    187,069.20x = 258,145.83 × 102,169.86
  4. Step 4: Simplify right side
    187,069.20x = 26,374,723,310.68
  5. Step 5: Solve for x
    x = 26,374,723,310.68/187,069.20
  6. Step 6: Final answer
    x = 140,989.13

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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.