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Finding the Fourth Proportional to 139,103.60, 208,653.08 and 44,332.47

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Solution

The fourth proportional to 139,103.60, 208,653.08 and 44,332.47 is: 66,497.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,103.60 : 208,653.08 = 44,332.47 : x
  2. Step 2: Convert to fraction form
    139,103.60/208,653.08 = 44,332.47/x
  3. Step 3: Cross multiply
    139,103.60x = 208,653.08 × 44,332.47
  4. Step 4: Simplify right side
    139,103.60x = 9,250,106,187.85
  5. Step 5: Solve for x
    x = 9,250,106,187.85/139,103.60
  6. Step 6: Final answer
    x = 66,497.97

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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.