Home / 121,286.66-181,954.38-51,165.68

Finding the Fourth Proportional to 121,286.66, 181,954.38 and 51,165.68

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Solution

The fourth proportional to 121,286.66, 181,954.38 and 51,165.68 is: 76,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,286.66 : 181,954.38 = 51,165.68 : x
  2. Step 2: Convert to fraction form
    121,286.66/181,954.38 = 51,165.68/x
  3. Step 3: Cross multiply
    121,286.66x = 181,954.38 × 51,165.68
  4. Step 4: Simplify right side
    121,286.66x = 9,309,819,581.68
  5. Step 5: Solve for x
    x = 9,309,819,581.68/121,286.66
  6. Step 6: Final answer
    x = 76,758.81

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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.