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Finding the Fourth Proportional to 79,200.60, 118,800.90 and 73,951.80

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Solution

The fourth proportional to 79,200.60, 118,800.90 and 73,951.80 is: 110,927.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,200.60 : 118,800.90 = 73,951.80 : x
  2. Step 2: Convert to fraction form
    79,200.60/118,800.90 = 73,951.80/x
  3. Step 3: Cross multiply
    79,200.60x = 118,800.90 × 73,951.80
  4. Step 4: Simplify right side
    79,200.60x = 8,785,540,396.62
  5. Step 5: Solve for x
    x = 8,785,540,396.62/79,200.60
  6. Step 6: Final answer
    x = 110,927.70

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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.