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Finding the Fourth Proportional to 128,793.39, 193,187.93 and 35,299.14

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Solution

The fourth proportional to 128,793.39, 193,187.93 and 35,299.14 is: 52,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,793.39 : 193,187.93 = 35,299.14 : x
  2. Step 2: Convert to fraction form
    128,793.39/193,187.93 = 35,299.14/x
  3. Step 3: Cross multiply
    128,793.39x = 193,187.93 × 35,299.14
  4. Step 4: Simplify right side
    128,793.39x = 6,819,367,610.88
  5. Step 5: Solve for x
    x = 6,819,367,610.88/128,793.39
  6. Step 6: Final answer
    x = 52,948.12

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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.