Home / 103,619.92-142,375.78-82,362.28

Finding the Fourth Proportional to 103,619.92, 142,375.78 and 82,362.28

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Solution

The fourth proportional to 103,619.92, 142,375.78 and 82,362.28 is: 113,167.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,619.92 : 142,375.78 = 82,362.28 : x
  2. Step 2: Convert to fraction form
    103,619.92/142,375.78 = 82,362.28/x
  3. Step 3: Cross multiply
    103,619.92x = 142,375.78 × 82,362.28
  4. Step 4: Simplify right side
    103,619.92x = 11,726,393,857.58
  5. Step 5: Solve for x
    x = 11,726,393,857.58/103,619.92
  6. Step 6: Final answer
    x = 113,167.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.