Home / 165,140.80-227,890.56-89,687.68

Finding the Fourth Proportional to 165,140.80, 227,890.56 and 89,687.68

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Solution

The fourth proportional to 165,140.80, 227,890.56 and 89,687.68 is: 123,766.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,140.80 : 227,890.56 = 89,687.68 : x
  2. Step 2: Convert to fraction form
    165,140.80/227,890.56 = 89,687.68/x
  3. Step 3: Cross multiply
    165,140.80x = 227,890.56 × 89,687.68
  4. Step 4: Simplify right side
    165,140.80x = 20,438,975,620.30
  5. Step 5: Solve for x
    x = 20,438,975,620.30/165,140.80
  6. Step 6: Final answer
    x = 123,766.97

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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.