Home / 131,072.75-196,186.23-67,805.75

Finding the Fourth Proportional to 131,072.75, 196,186.23 and 67,805.75

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Solution

The fourth proportional to 131,072.75, 196,186.23 and 67,805.75 is: 101,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,072.75 : 196,186.23 = 67,805.75 : x
  2. Step 2: Convert to fraction form
    131,072.75/196,186.23 = 67,805.75/x
  3. Step 3: Cross multiply
    131,072.75x = 196,186.23 × 67,805.75
  4. Step 4: Simplify right side
    131,072.75x = 13,302,553,144.86
  5. Step 5: Solve for x
    x = 13,302,553,144.86/131,072.75
  6. Step 6: Final answer
    x = 101,489.85

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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.