Home / 165,233.37-228,023.40-89,781.87

Finding the Fourth Proportional to 165,233.37, 228,023.40 and 89,781.87

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Solution

The fourth proportional to 165,233.37, 228,023.40 and 89,781.87 is: 123,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,233.37 : 228,023.40 = 89,781.87 : x
  2. Step 2: Convert to fraction form
    165,233.37/228,023.40 = 89,781.87/x
  3. Step 3: Cross multiply
    165,233.37x = 228,023.40 × 89,781.87
  4. Step 4: Simplify right side
    165,233.37x = 20,472,367,255.76
  5. Step 5: Solve for x
    x = 20,472,367,255.76/165,233.37
  6. Step 6: Final answer
    x = 123,899.71

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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.