Home / 129,961.20-194,927.40-106,546.80

Finding the Fourth Proportional to 129,961.20, 194,927.40 and 106,546.80

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Solution

The fourth proportional to 129,961.20, 194,927.40 and 106,546.80 is: 159,808.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,961.20 : 194,927.40 = 106,546.80 : x
  2. Step 2: Convert to fraction form
    129,961.20/194,927.40 = 106,546.80/x
  3. Step 3: Cross multiply
    129,961.20x = 194,927.40 × 106,546.80
  4. Step 4: Simplify right side
    129,961.20x = 20,768,890,702.32
  5. Step 5: Solve for x
    x = 20,768,890,702.32/129,961.20
  6. Step 6: Final answer
    x = 159,808.39

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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.