Home / 204,091.20-306,139.95-77,738.49

Finding the Fourth Proportional to 204,091.20, 306,139.95 and 77,738.49

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Solution

The fourth proportional to 204,091.20, 306,139.95 and 77,738.49 is: 116,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,091.20 : 306,139.95 = 77,738.49 : x
  2. Step 2: Convert to fraction form
    204,091.20/306,139.95 = 77,738.49/x
  3. Step 3: Cross multiply
    204,091.20x = 306,139.95 × 77,738.49
  4. Step 4: Simplify right side
    204,091.20x = 23,798,857,441.68
  5. Step 5: Solve for x
    x = 23,798,857,441.68/204,091.20
  6. Step 6: Final answer
    x = 116,608.93

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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.