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Finding the Fourth Proportional to 139,175.39, 208,764.36 and 44,419.97

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Solution

The fourth proportional to 139,175.39, 208,764.36 and 44,419.97 is: 66,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,175.39 : 208,764.36 = 44,419.97 : x
  2. Step 2: Convert to fraction form
    139,175.39/208,764.36 = 44,419.97/x
  3. Step 3: Cross multiply
    139,175.39x = 208,764.36 × 44,419.97
  4. Step 4: Simplify right side
    139,175.39x = 9,273,305,564.45
  5. Step 5: Solve for x
    x = 9,273,305,564.45/139,175.39
  6. Step 6: Final answer
    x = 66,630.36

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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.