Home / 129,833.58-194,759.25-76,603.35

Finding the Fourth Proportional to 129,833.58, 194,759.25 and 76,603.35

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Solution

The fourth proportional to 129,833.58, 194,759.25 and 76,603.35 is: 114,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,833.58 : 194,759.25 = 76,603.35 : x
  2. Step 2: Convert to fraction form
    129,833.58/194,759.25 = 76,603.35/x
  3. Step 3: Cross multiply
    129,833.58x = 194,759.25 × 76,603.35
  4. Step 4: Simplify right side
    129,833.58x = 14,919,210,993.49
  5. Step 5: Solve for x
    x = 14,919,210,993.49/129,833.58
  6. Step 6: Final answer
    x = 114,910.26

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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.