Home / 80,186.50-110,529.89-63,163.79

Finding the Fourth Proportional to 80,186.50, 110,529.89 and 63,163.79

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Solution

The fourth proportional to 80,186.50, 110,529.89 and 63,163.79 is: 87,065.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,186.50 : 110,529.89 = 63,163.79 : x
  2. Step 2: Convert to fraction form
    80,186.50/110,529.89 = 63,163.79/x
  3. Step 3: Cross multiply
    80,186.50x = 110,529.89 × 63,163.79
  4. Step 4: Simplify right side
    80,186.50x = 6,981,486,444.86
  5. Step 5: Solve for x
    x = 6,981,486,444.86/80,186.50
  6. Step 6: Final answer
    x = 87,065.61

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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.