Home / 129,575.13-194,362.70-74,132.25

Finding the Fourth Proportional to 129,575.13, 194,362.70 and 74,132.25

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Solution

The fourth proportional to 129,575.13, 194,362.70 and 74,132.25 is: 111,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,575.13 : 194,362.70 = 74,132.25 : x
  2. Step 2: Convert to fraction form
    129,575.13/194,362.70 = 74,132.25/x
  3. Step 3: Cross multiply
    129,575.13x = 194,362.70 × 74,132.25
  4. Step 4: Simplify right side
    129,575.13x = 14,408,543,896.41
  5. Step 5: Solve for x
    x = 14,408,543,896.41/129,575.13
  6. Step 6: Final answer
    x = 111,198.38

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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.