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Finding the Fourth Proportional to 139,450.63, 209,190.82 and 44,646.92

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Solution

The fourth proportional to 139,450.63, 209,190.82 and 44,646.92 is: 66,975.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,450.63 : 209,190.82 = 44,646.92 : x
  2. Step 2: Convert to fraction form
    139,450.63/209,190.82 = 44,646.92/x
  3. Step 3: Cross multiply
    139,450.63x = 209,190.82 × 44,646.92
  4. Step 4: Simplify right side
    139,450.63x = 9,339,724,647.70
  5. Step 5: Solve for x
    x = 9,339,724,647.70/139,450.63
  6. Step 6: Final answer
    x = 66,975.14

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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.