Home / 165,561.50-228,474.87-90,110.54

Finding the Fourth Proportional to 165,561.50, 228,474.87 and 90,110.54

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Solution

The fourth proportional to 165,561.50, 228,474.87 and 90,110.54 is: 124,352.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,561.50 : 228,474.87 = 90,110.54 : x
  2. Step 2: Convert to fraction form
    165,561.50/228,474.87 = 90,110.54/x
  3. Step 3: Cross multiply
    165,561.50x = 228,474.87 × 90,110.54
  4. Step 4: Simplify right side
    165,561.50x = 20,587,993,912.13
  5. Step 5: Solve for x
    x = 20,587,993,912.13/165,561.50
  6. Step 6: Final answer
    x = 124,352.55

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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.