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Finding the Fourth Proportional to 139,739.33, 209,609.08 and 44,969.49

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Solution

The fourth proportional to 139,739.33, 209,609.08 and 44,969.49 is: 67,454.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,739.33 : 209,609.08 = 44,969.49 : x
  2. Step 2: Convert to fraction form
    139,739.33/209,609.08 = 44,969.49/x
  3. Step 3: Cross multiply
    139,739.33x = 209,609.08 × 44,969.49
  4. Step 4: Simplify right side
    139,739.33x = 9,426,013,426.97
  5. Step 5: Solve for x
    x = 9,426,013,426.97/139,739.33
  6. Step 6: Final answer
    x = 67,454.26

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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.