Home / 168,021.24-231,766.70-99,992.52

Finding the Fourth Proportional to 168,021.24, 231,766.70 and 99,992.52

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Solution

The fourth proportional to 168,021.24, 231,766.70 and 99,992.52 is: 137,928.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,021.24 : 231,766.70 = 99,992.52 : x
  2. Step 2: Convert to fraction form
    168,021.24/231,766.70 = 99,992.52/x
  3. Step 3: Cross multiply
    168,021.24x = 231,766.70 × 99,992.52
  4. Step 4: Simplify right side
    168,021.24x = 23,174,936,385.08
  5. Step 5: Solve for x
    x = 23,174,936,385.08/168,021.24
  6. Step 6: Final answer
    x = 137,928.61

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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.