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Finding the Fourth Proportional to 139,101.87, 208,668.15 and 44,310.00

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Solution

The fourth proportional to 139,101.87, 208,668.15 and 44,310.00 is: 66,469.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,101.87 : 208,668.15 = 44,310.00 : x
  2. Step 2: Convert to fraction form
    139,101.87/208,668.15 = 44,310.00/x
  3. Step 3: Cross multiply
    139,101.87x = 208,668.15 × 44,310.00
  4. Step 4: Simplify right side
    139,101.87x = 9,246,086,509.01
  5. Step 5: Solve for x
    x = 9,246,086,509.01/139,101.87
  6. Step 6: Final answer
    x = 66,469.89

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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.