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Finding the Fourth Proportional to 103,952.72, 143,422 and 63,624.44

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Solution

The fourth proportional to 103,952.72, 143,422 and 63,624.44 is: 87,781.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,952.72 : 143,422 = 63,624.44 : x
  2. Step 2: Convert to fraction form
    103,952.72/143,422 = 63,624.44/x
  3. Step 3: Cross multiply
    103,952.72x = 143,422 × 63,624.44
  4. Step 4: Simplify right side
    103,952.72x = 9,125,143,716.57
  5. Step 5: Solve for x
    x = 9,125,143,716.57/103,952.72
  6. Step 6: Final answer
    x = 87,781.68

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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.