Home / 131,190.11-196,930.85-67,993.31

Finding the Fourth Proportional to 131,190.11, 196,930.85 and 67,993.31

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Solution

The fourth proportional to 131,190.11, 196,930.85 and 67,993.31 is: 102,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,190.11 : 196,930.85 = 67,993.31 : x
  2. Step 2: Convert to fraction form
    131,190.11/196,930.85 = 67,993.31/x
  3. Step 3: Cross multiply
    131,190.11x = 196,930.85 × 67,993.31
  4. Step 4: Simplify right side
    131,190.11x = 13,389,979,992.65
  5. Step 5: Solve for x
    x = 13,389,979,992.65/131,190.11
  6. Step 6: Final answer
    x = 102,065.47

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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.