Home / 110,511.45-165,767.18-81,059.85

Finding the Fourth Proportional to 110,511.45, 165,767.18 and 81,059.85

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Solution

The fourth proportional to 110,511.45, 165,767.18 and 81,059.85 is: 121,589.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,511.45 : 165,767.18 = 81,059.85 : x
  2. Step 2: Convert to fraction form
    110,511.45/165,767.18 = 81,059.85/x
  3. Step 3: Cross multiply
    110,511.45x = 165,767.18 × 81,059.85
  4. Step 4: Simplify right side
    110,511.45x = 13,437,062,340.42
  5. Step 5: Solve for x
    x = 13,437,062,340.42/110,511.45
  6. Step 6: Final answer
    x = 121,589.78

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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.