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Finding the Fourth Proportional to 79,175.66, 118,168.83 and 68,454.59

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Solution

The fourth proportional to 79,175.66, 118,168.83 and 68,454.59 is: 102,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,175.66 : 118,168.83 = 68,454.59 : x
  2. Step 2: Convert to fraction form
    79,175.66/118,168.83 = 68,454.59/x
  3. Step 3: Cross multiply
    79,175.66x = 118,168.83 × 68,454.59
  4. Step 4: Simplify right side
    79,175.66x = 8,089,198,217.59
  5. Step 5: Solve for x
    x = 8,089,198,217.59/79,175.66
  6. Step 6: Final answer
    x = 102,167.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.