Home / 168,964.20-232,890.66-121,141.80

Finding the Fourth Proportional to 168,964.20, 232,890.66 and 121,141.80

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Solution

The fourth proportional to 168,964.20, 232,890.66 and 121,141.80 is: 166,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,964.20 : 232,890.66 = 121,141.80 : x
  2. Step 2: Convert to fraction form
    168,964.20/232,890.66 = 121,141.80/x
  3. Step 3: Cross multiply
    168,964.20x = 232,890.66 × 121,141.80
  4. Step 4: Simplify right side
    168,964.20x = 28,212,793,755.59
  5. Step 5: Solve for x
    x = 28,212,793,755.59/168,964.20
  6. Step 6: Final answer
    x = 166,974.98

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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.