Home / 257,961.96-387,092.39-108,188.91

Finding the Fourth Proportional to 257,961.96, 387,092.39 and 108,188.91

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Solution

The fourth proportional to 257,961.96, 387,092.39 and 108,188.91 is: 162,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,961.96 : 387,092.39 = 108,188.91 : x
  2. Step 2: Convert to fraction form
    257,961.96/387,092.39 = 108,188.91/x
  3. Step 3: Cross multiply
    257,961.96x = 387,092.39 × 108,188.91
  4. Step 4: Simplify right side
    257,961.96x = 41,879,103,202.45
  5. Step 5: Solve for x
    x = 41,879,103,202.45/257,961.96
  6. Step 6: Final answer
    x = 162,346.04

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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.