Home / 142,610.88-196,823.76-82,169.84

Finding the Fourth Proportional to 142,610.88, 196,823.76 and 82,169.84

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Solution

The fourth proportional to 142,610.88, 196,823.76 and 82,169.84 is: 113,406.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,610.88 : 196,823.76 = 82,169.84 : x
  2. Step 2: Convert to fraction form
    142,610.88/196,823.76 = 82,169.84/x
  3. Step 3: Cross multiply
    142,610.88x = 196,823.76 × 82,169.84
  4. Step 4: Simplify right side
    142,610.88x = 16,172,976,867.40
  5. Step 5: Solve for x
    x = 16,172,976,867.40/142,610.88
  6. Step 6: Final answer
    x = 113,406.33

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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.