Home / 204,034.90-305,906.55-91,623.10

Finding the Fourth Proportional to 204,034.90, 305,906.55 and 91,623.10

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Solution

The fourth proportional to 204,034.90, 305,906.55 and 91,623.10 is: 137,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,034.90 : 305,906.55 = 91,623.10 : x
  2. Step 2: Convert to fraction form
    204,034.90/305,906.55 = 91,623.10/x
  3. Step 3: Cross multiply
    204,034.90x = 305,906.55 × 91,623.10
  4. Step 4: Simplify right side
    204,034.90x = 28,028,106,421.31
  5. Step 5: Solve for x
    x = 28,028,106,421.31/204,034.90
  6. Step 6: Final answer
    x = 137,369.18

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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.