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Finding the Fourth Proportional to 168,989.57, 253,393.41 and 67,736.79

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Solution

The fourth proportional to 168,989.57, 253,393.41 and 67,736.79 is: 101,568.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,989.57 : 253,393.41 = 67,736.79 : x
  2. Step 2: Convert to fraction form
    168,989.57/253,393.41 = 67,736.79/x
  3. Step 3: Cross multiply
    168,989.57x = 253,393.41 × 67,736.79
  4. Step 4: Simplify right side
    168,989.57x = 17,164,056,200.55
  5. Step 5: Solve for x
    x = 17,164,056,200.55/168,989.57
  6. Step 6: Final answer
    x = 101,568.73

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1.5x scale

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.