Home / 129,678.33-194,538.24-54,799.20

Finding the Fourth Proportional to 129,678.33, 194,538.24 and 54,799.20

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Solution

The fourth proportional to 129,678.33, 194,538.24 and 54,799.20 is: 82,207.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,678.33 : 194,538.24 = 54,799.20 : x
  2. Step 2: Convert to fraction form
    129,678.33/194,538.24 = 54,799.20/x
  3. Step 3: Cross multiply
    129,678.33x = 194,538.24 × 54,799.20
  4. Step 4: Simplify right side
    129,678.33x = 10,660,539,921.41
  5. Step 5: Solve for x
    x = 10,660,539,921.41/129,678.33
  6. Step 6: Final answer
    x = 82,207.57

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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.