Home / 165,773.22-228,766.92-90,321.72

Finding the Fourth Proportional to 165,773.22, 228,766.92 and 90,321.72

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Solution

The fourth proportional to 165,773.22, 228,766.92 and 90,321.72 is: 124,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,773.22 : 228,766.92 = 90,321.72 : x
  2. Step 2: Convert to fraction form
    165,773.22/228,766.92 = 90,321.72/x
  3. Step 3: Cross multiply
    165,773.22x = 228,766.92 × 90,321.72
  4. Step 4: Simplify right side
    165,773.22x = 20,662,621,693.50
  5. Step 5: Solve for x
    x = 20,662,621,693.50/165,773.22
  6. Step 6: Final answer
    x = 124,643.91

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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.