Home / 120,286.82-165,979.38-69,280.58

Finding the Fourth Proportional to 120,286.82, 165,979.38 and 69,280.58

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Solution

The fourth proportional to 120,286.82, 165,979.38 and 69,280.58 is: 95,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,286.82 : 165,979.38 = 69,280.58 : x
  2. Step 2: Convert to fraction form
    120,286.82/165,979.38 = 69,280.58/x
  3. Step 3: Cross multiply
    120,286.82x = 165,979.38 × 69,280.58
  4. Step 4: Simplify right side
    120,286.82x = 11,499,147,714.44
  5. Step 5: Solve for x
    x = 11,499,147,714.44/120,286.82
  6. Step 6: Final answer
    x = 95,597.74

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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.