Home / 131,268.24-181,163.76-80,314.92

Finding the Fourth Proportional to 131,268.24, 181,163.76 and 80,314.92

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Solution

The fourth proportional to 131,268.24, 181,163.76 and 80,314.92 is: 110,842.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,268.24 : 181,163.76 = 80,314.92 : x
  2. Step 2: Convert to fraction form
    131,268.24/181,163.76 = 80,314.92/x
  3. Step 3: Cross multiply
    131,268.24x = 181,163.76 × 80,314.92
  4. Step 4: Simplify right side
    131,268.24x = 14,550,152,891.30
  5. Step 5: Solve for x
    x = 14,550,152,891.30/131,268.24
  6. Step 6: Final answer
    x = 110,842.90

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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.