Home / 131,327.77-181,239.11-80,324.50

Finding the Fourth Proportional to 131,327.77, 181,239.11 and 80,324.50

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Solution

The fourth proportional to 131,327.77, 181,239.11 and 80,324.50 is: 110,851.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,327.77 : 181,239.11 = 80,324.50 : x
  2. Step 2: Convert to fraction form
    131,327.77/181,239.11 = 80,324.50/x
  3. Step 3: Cross multiply
    131,327.77x = 181,239.11 × 80,324.50
  4. Step 4: Simplify right side
    131,327.77x = 14,557,940,891.20
  5. Step 5: Solve for x
    x = 14,557,940,891.20/131,327.77
  6. Step 6: Final answer
    x = 110,851.96

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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.