Home / 144,291.38-199,118.39-80,629.70

Finding the Fourth Proportional to 144,291.38, 199,118.39 and 80,629.70

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Solution

The fourth proportional to 144,291.38, 199,118.39 and 80,629.70 is: 111,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,291.38 : 199,118.39 = 80,629.70 : x
  2. Step 2: Convert to fraction form
    144,291.38/199,118.39 = 80,629.70/x
  3. Step 3: Cross multiply
    144,291.38x = 199,118.39 × 80,629.70
  4. Step 4: Simplify right side
    144,291.38x = 16,054,854,651.44
  5. Step 5: Solve for x
    x = 16,054,854,651.44/144,291.38
  6. Step 6: Final answer
    x = 111,266.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.