Home / 119,738.80-165,236.38-66,022.91

Finding the Fourth Proportional to 119,738.80, 165,236.38 and 66,022.91

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Solution

The fourth proportional to 119,738.80, 165,236.38 and 66,022.91 is: 91,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,738.80 : 165,236.38 = 66,022.91 : x
  2. Step 2: Convert to fraction form
    119,738.80/165,236.38 = 66,022.91/x
  3. Step 3: Cross multiply
    119,738.80x = 165,236.38 × 66,022.91
  4. Step 4: Simplify right side
    119,738.80x = 10,909,385,654.23
  5. Step 5: Solve for x
    x = 10,909,385,654.23/119,738.80
  6. Step 6: Final answer
    x = 91,109.86

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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.