Home / 90,849.92-136,186.36-43,452.68

Finding the Fourth Proportional to 90,849.92, 136,186.36 and 43,452.68

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Solution

The fourth proportional to 90,849.92, 136,186.36 and 43,452.68 is: 65,136.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,849.92 : 136,186.36 = 43,452.68 : x
  2. Step 2: Convert to fraction form
    90,849.92/136,186.36 = 43,452.68/x
  3. Step 3: Cross multiply
    90,849.92x = 136,186.36 × 43,452.68
  4. Step 4: Simplify right side
    90,849.92x = 5,917,662,321.44
  5. Step 5: Solve for x
    x = 5,917,662,321.44/90,849.92
  6. Step 6: Final answer
    x = 65,136.68

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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.