Home / 129,719.03-194,584.36-39,755.15

Finding the Fourth Proportional to 129,719.03, 194,584.36 and 39,755.15

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Solution

The fourth proportional to 129,719.03, 194,584.36 and 39,755.15 is: 59,634.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,719.03 : 194,584.36 = 39,755.15 : x
  2. Step 2: Convert to fraction form
    129,719.03/194,584.36 = 39,755.15/x
  3. Step 3: Cross multiply
    129,719.03x = 194,584.36 × 39,755.15
  4. Step 4: Simplify right side
    129,719.03x = 7,735,729,347.14
  5. Step 5: Solve for x
    x = 7,735,729,347.14/129,719.03
  6. Step 6: Final answer
    x = 59,634.50

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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.