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Finding the Fourth Proportional to 139,576.49, 209,364.85 and 34,395.47

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Solution

The fourth proportional to 139,576.49, 209,364.85 and 34,395.47 is: 51,593.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,576.49 : 209,364.85 = 34,395.47 : x
  2. Step 2: Convert to fraction form
    139,576.49/209,364.85 = 34,395.47/x
  3. Step 3: Cross multiply
    139,576.49x = 209,364.85 × 34,395.47
  4. Step 4: Simplify right side
    139,576.49x = 7,201,202,417.23
  5. Step 5: Solve for x
    x = 7,201,202,417.23/139,576.49
  6. Step 6: Final answer
    x = 51,593.23

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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.