Home / 129,932.36-194,917-39,982.52

Finding the Fourth Proportional to 129,932.36, 194,917 and 39,982.52

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Solution

The fourth proportional to 129,932.36, 194,917 and 39,982.52 is: 59,979.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,932.36 : 194,917 = 39,982.52 : x
  2. Step 2: Convert to fraction form
    129,932.36/194,917 = 39,982.52/x
  3. Step 3: Cross multiply
    129,932.36x = 194,917 × 39,982.52
  4. Step 4: Simplify right side
    129,932.36x = 7,793,272,850.84
  5. Step 5: Solve for x
    x = 7,793,272,850.84/129,932.36
  6. Step 6: Final answer
    x = 59,979.46

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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.