Home / 168,991.47-253,396.27-67,738.70

Finding the Fourth Proportional to 168,991.47, 253,396.27 and 67,738.70

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Solution

The fourth proportional to 168,991.47, 253,396.27 and 67,738.70 is: 101,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,991.47 : 253,396.27 = 67,738.70 : x
  2. Step 2: Convert to fraction form
    168,991.47/253,396.27 = 67,738.70/x
  3. Step 3: Cross multiply
    168,991.47x = 253,396.27 × 67,738.70
  4. Step 4: Simplify right side
    168,991.47x = 17,164,733,914.65
  5. Step 5: Solve for x
    x = 17,164,733,914.65/168,991.47
  6. Step 6: Final answer
    x = 101,571.60

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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.