Home / 119,817.11-165,348.18-66,102.12

Finding the Fourth Proportional to 119,817.11, 165,348.18 and 66,102.12

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Solution

The fourth proportional to 119,817.11, 165,348.18 and 66,102.12 is: 91,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,817.11 : 165,348.18 = 66,102.12 : x
  2. Step 2: Convert to fraction form
    119,817.11/165,348.18 = 66,102.12/x
  3. Step 3: Cross multiply
    119,817.11x = 165,348.18 × 66,102.12
  4. Step 4: Simplify right side
    119,817.11x = 10,929,865,236.14
  5. Step 5: Solve for x
    x = 10,929,865,236.14/119,817.11
  6. Step 6: Final answer
    x = 91,221.24

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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.