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Finding the Fourth Proportional to 80,000.80, 119,770.80 and 77,696.80

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Solution

The fourth proportional to 80,000.80, 119,770.80 and 77,696.80 is: 116,321.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,000.80 : 119,770.80 = 77,696.80 : x
  2. Step 2: Convert to fraction form
    80,000.80/119,770.80 = 77,696.80/x
  3. Step 3: Cross multiply
    80,000.80x = 119,770.80 × 77,696.80
  4. Step 4: Simplify right side
    80,000.80x = 9,305,807,893.44
  5. Step 5: Solve for x
    x = 9,305,807,893.44/80,000.80
  6. Step 6: Final answer
    x = 116,321.44

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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.