Home / 165,211.62-227,992.66-89,760.12

Finding the Fourth Proportional to 165,211.62, 227,992.66 and 89,760.12

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Solution

The fourth proportional to 165,211.62, 227,992.66 and 89,760.12 is: 123,869.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,211.62 : 227,992.66 = 89,760.12 : x
  2. Step 2: Convert to fraction form
    165,211.62/227,992.66 = 89,760.12/x
  3. Step 3: Cross multiply
    165,211.62x = 227,992.66 × 89,760.12
  4. Step 4: Simplify right side
    165,211.62x = 20,464,648,520.72
  5. Step 5: Solve for x
    x = 20,464,648,520.72/165,211.62
  6. Step 6: Final answer
    x = 123,869.30

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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.