Home / 165,684.24-228,644.64-90,231.12

Finding the Fourth Proportional to 165,684.24, 228,644.64 and 90,231.12

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Solution

The fourth proportional to 165,684.24, 228,644.64 and 90,231.12 is: 124,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,684.24 : 228,644.64 = 90,231.12 : x
  2. Step 2: Convert to fraction form
    165,684.24/228,644.64 = 90,231.12/x
  3. Step 3: Cross multiply
    165,684.24x = 228,644.64 × 90,231.12
  4. Step 4: Simplify right side
    165,684.24x = 20,630,861,949.20
  5. Step 5: Solve for x
    x = 20,630,861,949.20/165,684.24
  6. Step 6: Final answer
    x = 124,519.16

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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.