Home / 129,757.09-194,566.25-66,551.42

Finding the Fourth Proportional to 129,757.09, 194,566.25 and 66,551.42

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Solution

The fourth proportional to 129,757.09, 194,566.25 and 66,551.42 is: 99,791.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,757.09 : 194,566.25 = 66,551.42 : x
  2. Step 2: Convert to fraction form
    129,757.09/194,566.25 = 66,551.42/x
  3. Step 3: Cross multiply
    129,757.09x = 194,566.25 × 66,551.42
  4. Step 4: Simplify right side
    129,757.09x = 12,948,660,874.37
  5. Step 5: Solve for x
    x = 12,948,660,874.37/129,757.09
  6. Step 6: Final answer
    x = 99,791.55

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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.