Home / 167,639.76-231,391.88-99,704.56

Finding the Fourth Proportional to 167,639.76, 231,391.88 and 99,704.56

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Solution

The fourth proportional to 167,639.76, 231,391.88 and 99,704.56 is: 137,621.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,639.76 : 231,391.88 = 99,704.56 : x
  2. Step 2: Convert to fraction form
    167,639.76/231,391.88 = 99,704.56/x
  3. Step 3: Cross multiply
    167,639.76x = 231,391.88 × 99,704.56
  4. Step 4: Simplify right side
    167,639.76x = 23,070,825,582.97
  5. Step 5: Solve for x
    x = 23,070,825,582.97/167,639.76
  6. Step 6: Final answer
    x = 137,621.44

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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.