Home / 165,589.52-228,512.40-90,137.84

Finding the Fourth Proportional to 165,589.52, 228,512.40 and 90,137.84

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Solution

The fourth proportional to 165,589.52, 228,512.40 and 90,137.84 is: 124,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,589.52 : 228,512.40 = 90,137.84 : x
  2. Step 2: Convert to fraction form
    165,589.52/228,512.40 = 90,137.84/x
  3. Step 3: Cross multiply
    165,589.52x = 228,512.40 × 90,137.84
  4. Step 4: Simplify right side
    165,589.52x = 20,597,614,149.22
  5. Step 5: Solve for x
    x = 20,597,614,149.22/165,589.52
  6. Step 6: Final answer
    x = 124,389.60

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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.