Home / 165,741.92-228,723.82-90,290.42

Finding the Fourth Proportional to 165,741.92, 228,723.82 and 90,290.42

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Solution

The fourth proportional to 165,741.92, 228,723.82 and 90,290.42 is: 124,600.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,741.92 : 228,723.82 = 90,290.42 : x
  2. Step 2: Convert to fraction form
    165,741.92/228,723.82 = 90,290.42/x
  3. Step 3: Cross multiply
    165,741.92x = 228,723.82 × 90,290.42
  4. Step 4: Simplify right side
    165,741.92x = 20,651,569,771.80
  5. Step 5: Solve for x
    x = 20,651,569,771.80/165,741.92
  6. Step 6: Final answer
    x = 124,600.76

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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.