Home / 107,286.70-161,035.98-80,539.69

Finding the Fourth Proportional to 107,286.70, 161,035.98 and 80,539.69

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Solution

The fourth proportional to 107,286.70, 161,035.98 and 80,539.69 is: 120,889.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,286.70 : 161,035.98 = 80,539.69 : x
  2. Step 2: Convert to fraction form
    107,286.70/161,035.98 = 80,539.69/x
  3. Step 3: Cross multiply
    107,286.70x = 161,035.98 × 80,539.69
  4. Step 4: Simplify right side
    107,286.70x = 12,969,787,908.05
  5. Step 5: Solve for x
    x = 12,969,787,908.05/107,286.70
  6. Step 6: Final answer
    x = 120,889.06

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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.