Home / 131,186.72-196,837.68-68,842.64

Finding the Fourth Proportional to 131,186.72, 196,837.68 and 68,842.64

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Solution

The fourth proportional to 131,186.72, 196,837.68 and 68,842.64 is: 103,294.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,186.72 : 196,837.68 = 68,842.64 : x
  2. Step 2: Convert to fraction form
    131,186.72/196,837.68 = 68,842.64/x
  3. Step 3: Cross multiply
    131,186.72x = 196,837.68 × 68,842.64
  4. Step 4: Simplify right side
    131,186.72x = 13,550,825,542.68
  5. Step 5: Solve for x
    x = 13,550,825,542.68/131,186.72
  6. Step 6: Final answer
    x = 103,294.19

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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.