Home / 203,585.78-305,231.04-136,860.41

Finding the Fourth Proportional to 203,585.78, 305,231.04 and 136,860.41

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Solution

The fourth proportional to 203,585.78, 305,231.04 and 136,860.41 is: 205,191.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,585.78 : 305,231.04 = 136,860.41 : x
  2. Step 2: Convert to fraction form
    203,585.78/305,231.04 = 136,860.41/x
  3. Step 3: Cross multiply
    203,585.78x = 305,231.04 × 136,860.41
  4. Step 4: Simplify right side
    203,585.78x = 41,774,043,752.97
  5. Step 5: Solve for x
    x = 41,774,043,752.97/203,585.78
  6. Step 6: Final answer
    x = 205,191.37

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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.