Home / 129,844.60-194,766.90-83,188.60

Finding the Fourth Proportional to 129,844.60, 194,766.90 and 83,188.60

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Solution

The fourth proportional to 129,844.60, 194,766.90 and 83,188.60 is: 124,782.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,844.60 : 194,766.90 = 83,188.60 : x
  2. Step 2: Convert to fraction form
    129,844.60/194,766.90 = 83,188.60/x
  3. Step 3: Cross multiply
    129,844.60x = 194,766.90 × 83,188.60
  4. Step 4: Simplify right side
    129,844.60x = 16,202,385,737.34
  5. Step 5: Solve for x
    x = 16,202,385,737.34/129,844.60
  6. Step 6: Final answer
    x = 124,782.90

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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.