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Finding the Fourth Proportional to 139,059, 208,578.02 and 44,285.36

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Solution

The fourth proportional to 139,059, 208,578.02 and 44,285.36 is: 66,424.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,059 : 208,578.02 = 44,285.36 : x
  2. Step 2: Convert to fraction form
    139,059/208,578.02 = 44,285.36/x
  3. Step 3: Cross multiply
    139,059x = 208,578.02 × 44,285.36
  4. Step 4: Simplify right side
    139,059x = 9,236,951,439.47
  5. Step 5: Solve for x
    x = 9,236,951,439.47/139,059
  6. Step 6: Final answer
    x = 66,424.69

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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.