Home / 167,851.72-231,605.94-100,785.16

Finding the Fourth Proportional to 167,851.72, 231,605.94 and 100,785.16

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Solution

The fourth proportional to 167,851.72, 231,605.94 and 100,785.16 is: 139,065.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,851.72 : 231,605.94 = 100,785.16 : x
  2. Step 2: Convert to fraction form
    167,851.72/231,605.94 = 100,785.16/x
  3. Step 3: Cross multiply
    167,851.72x = 231,605.94 × 100,785.16
  4. Step 4: Simplify right side
    167,851.72x = 23,342,441,719.85
  5. Step 5: Solve for x
    x = 23,342,441,719.85/167,851.72
  6. Step 6: Final answer
    x = 139,065.85

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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.