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Finding the Fourth Proportional to 139,650.63, 209,473.52 and 34,469.70

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Solution

The fourth proportional to 139,650.63, 209,473.52 and 34,469.70 is: 51,703.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,650.63 : 209,473.52 = 34,469.70 : x
  2. Step 2: Convert to fraction form
    139,650.63/209,473.52 = 34,469.70/x
  3. Step 3: Cross multiply
    139,650.63x = 209,473.52 × 34,469.70
  4. Step 4: Simplify right side
    139,650.63x = 7,220,489,220.00
  5. Step 5: Solve for x
    x = 7,220,489,220.00/139,650.63
  6. Step 6: Final answer
    x = 51,703.95

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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.