Home / 128,619.26-192,942.25-35,125

Finding the Fourth Proportional to 128,619.26, 192,942.25 and 35,125

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Solution

The fourth proportional to 128,619.26, 192,942.25 and 35,125 is: 52,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,619.26 : 192,942.25 = 35,125 : x
  2. Step 2: Convert to fraction form
    128,619.26/192,942.25 = 35,125/x
  3. Step 3: Cross multiply
    128,619.26x = 192,942.25 × 35,125
  4. Step 4: Simplify right side
    128,619.26x = 6,777,096,531.25
  5. Step 5: Solve for x
    x = 6,777,096,531.25/128,619.26
  6. Step 6: Final answer
    x = 52,691.15

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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.