Home / 168,039.40-231,891.78-92,590.60

Finding the Fourth Proportional to 168,039.40, 231,891.78 and 92,590.60

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Solution

The fourth proportional to 168,039.40, 231,891.78 and 92,590.60 is: 127,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,039.40 : 231,891.78 = 92,590.60 : x
  2. Step 2: Convert to fraction form
    168,039.40/231,891.78 = 92,590.60/x
  3. Step 3: Cross multiply
    168,039.40x = 231,891.78 × 92,590.60
  4. Step 4: Simplify right side
    168,039.40x = 21,470,999,045.27
  5. Step 5: Solve for x
    x = 21,470,999,045.27/168,039.40
  6. Step 6: Final answer
    x = 127,773.60

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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.