Home / 190,234.20-285,467.94-85,142.04

Finding the Fourth Proportional to 190,234.20, 285,467.94 and 85,142.04

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Solution

The fourth proportional to 190,234.20, 285,467.94 and 85,142.04 is: 127,765.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,234.20 : 285,467.94 = 85,142.04 : x
  2. Step 2: Convert to fraction form
    190,234.20/285,467.94 = 85,142.04/x
  3. Step 3: Cross multiply
    190,234.20x = 285,467.94 × 85,142.04
  4. Step 4: Simplify right side
    190,234.20x = 24,305,322,766.20
  5. Step 5: Solve for x
    x = 24,305,322,766.20/190,234.20
  6. Step 6: Final answer
    x = 127,765.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.