Home / 119,818.05-165,348.92-66,103.19

Finding the Fourth Proportional to 119,818.05, 165,348.92 and 66,103.19

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Solution

The fourth proportional to 119,818.05, 165,348.92 and 66,103.19 is: 91,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,818.05 : 165,348.92 = 66,103.19 : x
  2. Step 2: Convert to fraction form
    119,818.05/165,348.92 = 66,103.19/x
  3. Step 3: Cross multiply
    119,818.05x = 165,348.92 × 66,103.19
  4. Step 4: Simplify right side
    119,818.05x = 10,930,091,653.69
  5. Step 5: Solve for x
    x = 10,930,091,653.69/119,818.05
  6. Step 6: Final answer
    x = 91,222.41

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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.