Home / 133,078.90-199,618.35-131,329.30

Finding the Fourth Proportional to 133,078.90, 199,618.35 and 131,329.30

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Solution

The fourth proportional to 133,078.90, 199,618.35 and 131,329.30 is: 196,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078.90 : 199,618.35 = 131,329.30 : x
  2. Step 2: Convert to fraction form
    133,078.90/199,618.35 = 131,329.30/x
  3. Step 3: Cross multiply
    133,078.90x = 199,618.35 × 131,329.30
  4. Step 4: Simplify right side
    133,078.90x = 26,215,738,172.66
  5. Step 5: Solve for x
    x = 26,215,738,172.66/133,078.90
  6. Step 6: Final answer
    x = 196,993.95

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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.