Home / 129,745.25-194,705.22-45,506.20

Finding the Fourth Proportional to 129,745.25, 194,705.22 and 45,506.20

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Solution

The fourth proportional to 129,745.25, 194,705.22 and 45,506.20 is: 68,289.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,745.25 : 194,705.22 = 45,506.20 : x
  2. Step 2: Convert to fraction form
    129,745.25/194,705.22 = 45,506.20/x
  3. Step 3: Cross multiply
    129,745.25x = 194,705.22 × 45,506.20
  4. Step 4: Simplify right side
    129,745.25x = 8,860,293,708.84
  5. Step 5: Solve for x
    x = 8,860,293,708.84/129,745.25
  6. Step 6: Final answer
    x = 68,289.93

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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.