Home / 167,981.20-231,814.38-91,500.06

Finding the Fourth Proportional to 167,981.20, 231,814.38 and 91,500.06

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Solution

The fourth proportional to 167,981.20, 231,814.38 and 91,500.06 is: 126,270.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,981.20 : 231,814.38 = 91,500.06 : x
  2. Step 2: Convert to fraction form
    167,981.20/231,814.38 = 91,500.06/x
  3. Step 3: Cross multiply
    167,981.20x = 231,814.38 × 91,500.06
  4. Step 4: Simplify right side
    167,981.20x = 21,211,029,678.86
  5. Step 5: Solve for x
    x = 21,211,029,678.86/167,981.20
  6. Step 6: Final answer
    x = 126,270.26

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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.