Home / 165,722.12-228,696.18-90,270.44

Finding the Fourth Proportional to 165,722.12, 228,696.18 and 90,270.44

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Solution

The fourth proportional to 165,722.12, 228,696.18 and 90,270.44 is: 124,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,722.12 : 228,696.18 = 90,270.44 : x
  2. Step 2: Convert to fraction form
    165,722.12/228,696.18 = 90,270.44/x
  3. Step 3: Cross multiply
    165,722.12x = 228,696.18 × 90,270.44
  4. Step 4: Simplify right side
    165,722.12x = 20,644,504,794.92
  5. Step 5: Solve for x
    x = 20,644,504,794.92/165,722.12
  6. Step 6: Final answer
    x = 124,573.02

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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.