Home / 165,403.32-228,255.48-89,951.64

Finding the Fourth Proportional to 165,403.32, 228,255.48 and 89,951.64

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Solution

The fourth proportional to 165,403.32, 228,255.48 and 89,951.64 is: 124,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,403.32 : 228,255.48 = 89,951.64 : x
  2. Step 2: Convert to fraction form
    165,403.32/228,255.48 = 89,951.64/x
  3. Step 3: Cross multiply
    165,403.32x = 228,255.48 × 89,951.64
  4. Step 4: Simplify right side
    165,403.32x = 20,531,954,764.99
  5. Step 5: Solve for x
    x = 20,531,954,764.99/165,403.32
  6. Step 6: Final answer
    x = 124,132.66

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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.