Home / 205,187.92-308,122.26-126,800.38

Finding the Fourth Proportional to 205,187.92, 308,122.26 and 126,800.38

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Solution

The fourth proportional to 205,187.92, 308,122.26 and 126,800.38 is: 190,410.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,187.92 : 308,122.26 = 126,800.38 : x
  2. Step 2: Convert to fraction form
    205,187.92/308,122.26 = 126,800.38/x
  3. Step 3: Cross multiply
    205,187.92x = 308,122.26 × 126,800.38
  4. Step 4: Simplify right side
    205,187.92x = 39,070,019,654.46
  5. Step 5: Solve for x
    x = 39,070,019,654.46/205,187.92
  6. Step 6: Final answer
    x = 190,410.92

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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.