Home / 121,284.66-181,951.38-51,163.68

Finding the Fourth Proportional to 121,284.66, 181,951.38 and 51,163.68

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Solution

The fourth proportional to 121,284.66, 181,951.38 and 51,163.68 is: 76,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,284.66 : 181,951.38 = 51,163.68 : x
  2. Step 2: Convert to fraction form
    121,284.66/181,951.38 = 51,163.68/x
  3. Step 3: Cross multiply
    121,284.66x = 181,951.38 × 51,163.68
  4. Step 4: Simplify right side
    121,284.66x = 9,309,302,181.88
  5. Step 5: Solve for x
    x = 9,309,302,181.88/121,284.66
  6. Step 6: Final answer
    x = 76,755.81

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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.