Home / 165,808.08-228,819.60-90,361.44

Finding the Fourth Proportional to 165,808.08, 228,819.60 and 90,361.44

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Solution

The fourth proportional to 165,808.08, 228,819.60 and 90,361.44 is: 124,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,808.08 : 228,819.60 = 90,361.44 : x
  2. Step 2: Convert to fraction form
    165,808.08/228,819.60 = 90,361.44/x
  3. Step 3: Cross multiply
    165,808.08x = 228,819.60 × 90,361.44
  4. Step 4: Simplify right side
    165,808.08x = 20,676,468,556.22
  5. Step 5: Solve for x
    x = 20,676,468,556.22/165,808.08
  6. Step 6: Final answer
    x = 124,701.21

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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.