Home / 131,189.33-181,055.22-80,231.87

Finding the Fourth Proportional to 131,189.33, 181,055.22 and 80,231.87

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Solution

The fourth proportional to 131,189.33, 181,055.22 and 80,231.87 is: 110,728.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,189.33 : 181,055.22 = 80,231.87 : x
  2. Step 2: Convert to fraction form
    131,189.33/181,055.22 = 80,231.87/x
  3. Step 3: Cross multiply
    131,189.33x = 181,055.22 × 80,231.87
  4. Step 4: Simplify right side
    131,189.33x = 14,526,398,873.86
  5. Step 5: Solve for x
    x = 14,526,398,873.86/131,189.33
  6. Step 6: Final answer
    x = 110,728.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.