Home / 100,952.24-139,321.96-55,638.36

Finding the Fourth Proportional to 100,952.24, 139,321.96 and 55,638.36

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Solution

The fourth proportional to 100,952.24, 139,321.96 and 55,638.36 is: 76,785.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,952.24 : 139,321.96 = 55,638.36 : x
  2. Step 2: Convert to fraction form
    100,952.24/139,321.96 = 55,638.36/x
  3. Step 3: Cross multiply
    100,952.24x = 139,321.96 × 55,638.36
  4. Step 4: Simplify right side
    100,952.24x = 7,751,645,366.39
  5. Step 5: Solve for x
    x = 7,751,645,366.39/100,952.24
  6. Step 6: Final answer
    x = 76,785.27

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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.