Home / 128,668.22-192,996.15-35,174.18

Finding the Fourth Proportional to 128,668.22, 192,996.15 and 35,174.18

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Solution

The fourth proportional to 128,668.22, 192,996.15 and 35,174.18 is: 52,759.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,668.22 : 192,996.15 = 35,174.18 : x
  2. Step 2: Convert to fraction form
    128,668.22/192,996.15 = 35,174.18/x
  3. Step 3: Cross multiply
    128,668.22x = 192,996.15 × 35,174.18
  4. Step 4: Simplify right side
    128,668.22x = 6,788,481,319.41
  5. Step 5: Solve for x
    x = 6,788,481,319.41/128,668.22
  6. Step 6: Final answer
    x = 52,759.58

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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.