Home / 131,841.92-181,940.26-80,141.90

Finding the Fourth Proportional to 131,841.92, 181,940.26 and 80,141.90

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Solution

The fourth proportional to 131,841.92, 181,940.26 and 80,141.90 is: 110,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,841.92 : 181,940.26 = 80,141.90 : x
  2. Step 2: Convert to fraction form
    131,841.92/181,940.26 = 80,141.90/x
  3. Step 3: Cross multiply
    131,841.92x = 181,940.26 × 80,141.90
  4. Step 4: Simplify right side
    131,841.92x = 14,581,037,163.10
  5. Step 5: Solve for x
    x = 14,581,037,163.10/131,841.92
  6. Step 6: Final answer
    x = 110,594.85

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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.