Home / 80,198.46-120,262.56-38,090.58

Finding the Fourth Proportional to 80,198.46, 120,262.56 and 38,090.58

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Solution

The fourth proportional to 80,198.46, 120,262.56 and 38,090.58 is: 57,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,198.46 : 120,262.56 = 38,090.58 : x
  2. Step 2: Convert to fraction form
    80,198.46/120,262.56 = 38,090.58/x
  3. Step 3: Cross multiply
    80,198.46x = 120,262.56 × 38,090.58
  4. Step 4: Simplify right side
    80,198.46x = 4,580,870,662.68
  5. Step 5: Solve for x
    x = 4,580,870,662.68/80,198.46
  6. Step 6: Final answer
    x = 57,119.18

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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.