Home / 131,816.23-181,924.49-80,819.94

Finding the Fourth Proportional to 131,816.23, 181,924.49 and 80,819.94

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Solution

The fourth proportional to 131,816.23, 181,924.49 and 80,819.94 is: 111,542.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,816.23 : 181,924.49 = 80,819.94 : x
  2. Step 2: Convert to fraction form
    131,816.23/181,924.49 = 80,819.94/x
  3. Step 3: Cross multiply
    131,816.23x = 181,924.49 × 80,819.94
  4. Step 4: Simplify right side
    131,816.23x = 14,703,126,568.38
  5. Step 5: Solve for x
    x = 14,703,126,568.38/131,816.23
  6. Step 6: Final answer
    x = 111,542.61

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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.