Home / 131,188.22-196,781.64-51,234.30

Finding the Fourth Proportional to 131,188.22, 196,781.64 and 51,234.30

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Solution

The fourth proportional to 131,188.22, 196,781.64 and 51,234.30 is: 76,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,188.22 : 196,781.64 = 51,234.30 : x
  2. Step 2: Convert to fraction form
    131,188.22/196,781.64 = 51,234.30/x
  3. Step 3: Cross multiply
    131,188.22x = 196,781.64 × 51,234.30
  4. Step 4: Simplify right side
    131,188.22x = 10,081,969,578.25
  5. Step 5: Solve for x
    x = 10,081,969,578.25/131,188.22
  6. Step 6: Final answer
    x = 76,851.18

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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.