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Finding the Fourth Proportional to 144,860.78, 217,246.69 and 100,169.29

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Solution

The fourth proportional to 144,860.78, 217,246.69 and 100,169.29 is: 150,223.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,860.78 : 217,246.69 = 100,169.29 : x
  2. Step 2: Convert to fraction form
    144,860.78/217,246.69 = 100,169.29/x
  3. Step 3: Cross multiply
    144,860.78x = 217,246.69 × 100,169.29
  4. Step 4: Simplify right side
    144,860.78x = 21,761,446,692.15
  5. Step 5: Solve for x
    x = 21,761,446,692.15/144,860.78
  6. Step 6: Final answer
    x = 150,223.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.