Home / 67,136.15-100,731.56-43,147.33

Finding the Fourth Proportional to 67,136.15, 100,731.56 and 43,147.33

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Solution

The fourth proportional to 67,136.15, 100,731.56 and 43,147.33 is: 64,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,136.15 : 100,731.56 = 43,147.33 : x
  2. Step 2: Convert to fraction form
    67,136.15/100,731.56 = 43,147.33/x
  3. Step 3: Cross multiply
    67,136.15x = 100,731.56 × 43,147.33
  4. Step 4: Simplify right side
    67,136.15x = 4,346,297,393.17
  5. Step 5: Solve for x
    x = 4,346,297,393.17/67,136.15
  6. Step 6: Final answer
    x = 64,738.55

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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.