Home / 128,808.43-193,245.35-40,062.60

Finding the Fourth Proportional to 128,808.43, 193,245.35 and 40,062.60

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Solution

The fourth proportional to 128,808.43, 193,245.35 and 40,062.60 is: 60,104.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,808.43 : 193,245.35 = 40,062.60 : x
  2. Step 2: Convert to fraction form
    128,808.43/193,245.35 = 40,062.60/x
  3. Step 3: Cross multiply
    128,808.43x = 193,245.35 × 40,062.60
  4. Step 4: Simplify right side
    128,808.43x = 7,741,910,958.60
  5. Step 5: Solve for x
    x = 7,741,910,958.60/128,808.43
  6. Step 6: Final answer
    x = 60,104.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.