Home / 110,278.70-165,418.05-100,109.15

Finding the Fourth Proportional to 110,278.70, 165,418.05 and 100,109.15

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Solution

The fourth proportional to 110,278.70, 165,418.05 and 100,109.15 is: 150,163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,278.70 : 165,418.05 = 100,109.15 : x
  2. Step 2: Convert to fraction form
    110,278.70/165,418.05 = 100,109.15/x
  3. Step 3: Cross multiply
    110,278.70x = 165,418.05 × 100,109.15
  4. Step 4: Simplify right side
    110,278.70x = 16,559,860,380.16
  5. Step 5: Solve for x
    x = 16,559,860,380.16/110,278.70
  6. Step 6: Final answer
    x = 150,163.73

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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.