Home / 247,142.62-340,995.67-139,710.34

Finding the Fourth Proportional to 247,142.62, 340,995.67 and 139,710.34

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Solution

The fourth proportional to 247,142.62, 340,995.67 and 139,710.34 is: 192,765.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,142.62 : 340,995.67 = 139,710.34 : x
  2. Step 2: Convert to fraction form
    247,142.62/340,995.67 = 139,710.34/x
  3. Step 3: Cross multiply
    247,142.62x = 340,995.67 × 139,710.34
  4. Step 4: Simplify right side
    247,142.62x = 47,640,622,816.12
  5. Step 5: Solve for x
    x = 47,640,622,816.12/247,142.62
  6. Step 6: Final answer
    x = 192,765.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.