Home / 131,286.88-196,463.76-96,139.36

Finding the Fourth Proportional to 131,286.88, 196,463.76 and 96,139.36

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Solution

The fourth proportional to 131,286.88, 196,463.76 and 96,139.36 is: 143,867.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,286.88 : 196,463.76 = 96,139.36 : x
  2. Step 2: Convert to fraction form
    131,286.88/196,463.76 = 96,139.36/x
  3. Step 3: Cross multiply
    131,286.88x = 196,463.76 × 96,139.36
  4. Step 4: Simplify right side
    131,286.88x = 18,887,900,149.59
  5. Step 5: Solve for x
    x = 18,887,900,149.59/131,286.88
  6. Step 6: Final answer
    x = 143,867.39

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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.