Home / 135,766.78-203,799.15-107,866.18

Finding the Fourth Proportional to 135,766.78, 203,799.15 and 107,866.18

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Solution

The fourth proportional to 135,766.78, 203,799.15 and 107,866.18 is: 161,917.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,766.78 : 203,799.15 = 107,866.18 : x
  2. Step 2: Convert to fraction form
    135,766.78/203,799.15 = 107,866.18/x
  3. Step 3: Cross multiply
    135,766.78x = 203,799.15 × 107,866.18
  4. Step 4: Simplify right side
    135,766.78x = 21,983,035,797.75
  5. Step 5: Solve for x
    x = 21,983,035,797.75/135,766.78
  6. Step 6: Final answer
    x = 161,917.63

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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.