Home / 129,765.20-194,647.80-41,045.90

Finding the Fourth Proportional to 129,765.20, 194,647.80 and 41,045.90

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Solution

The fourth proportional to 129,765.20, 194,647.80 and 41,045.90 is: 61,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,765.20 : 194,647.80 = 41,045.90 : x
  2. Step 2: Convert to fraction form
    129,765.20/194,647.80 = 41,045.90/x
  3. Step 3: Cross multiply
    129,765.20x = 194,647.80 × 41,045.90
  4. Step 4: Simplify right side
    129,765.20x = 7,989,494,134.02
  5. Step 5: Solve for x
    x = 7,989,494,134.02/129,765.20
  6. Step 6: Final answer
    x = 61,568.85

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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.