Home / 121,932.65-168,260.18-67,481.81

Finding the Fourth Proportional to 121,932.65, 168,260.18 and 67,481.81

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Solution

The fourth proportional to 121,932.65, 168,260.18 and 67,481.81 is: 93,121.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,932.65 : 168,260.18 = 67,481.81 : x
  2. Step 2: Convert to fraction form
    121,932.65/168,260.18 = 67,481.81/x
  3. Step 3: Cross multiply
    121,932.65x = 168,260.18 × 67,481.81
  4. Step 4: Simplify right side
    121,932.65x = 11,354,500,318.62
  5. Step 5: Solve for x
    x = 11,354,500,318.62/121,932.65
  6. Step 6: Final answer
    x = 93,121.09

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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.