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Finding the Fourth Proportional to 139,251.56, 208,867.01 and 44,477.91

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Solution

The fourth proportional to 139,251.56, 208,867.01 and 44,477.91 is: 66,713.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,251.56 : 208,867.01 = 44,477.91 : x
  2. Step 2: Convert to fraction form
    139,251.56/208,867.01 = 44,477.91/x
  3. Step 3: Cross multiply
    139,251.56x = 208,867.01 × 44,477.91
  4. Step 4: Simplify right side
    139,251.56x = 9,289,967,850.36
  5. Step 5: Solve for x
    x = 9,289,967,850.36/139,251.56
  6. Step 6: Final answer
    x = 66,713.57

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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.