Home / 120,789.09-181,147.19-50,652.81

Finding the Fourth Proportional to 120,789.09, 181,147.19 and 50,652.81

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Solution

The fourth proportional to 120,789.09, 181,147.19 and 50,652.81 is: 75,963.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,789.09 : 181,147.19 = 50,652.81 : x
  2. Step 2: Convert to fraction form
    120,789.09/181,147.19 = 50,652.81/x
  3. Step 3: Cross multiply
    120,789.09x = 181,147.19 × 50,652.81
  4. Step 4: Simplify right side
    120,789.09x = 9,175,613,943.84
  5. Step 5: Solve for x
    x = 9,175,613,943.84/120,789.09
  6. Step 6: Final answer
    x = 75,963.93

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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.