Home / 129,867.20-194,800.80-82,865.60

Finding the Fourth Proportional to 129,867.20, 194,800.80 and 82,865.60

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Solution

The fourth proportional to 129,867.20, 194,800.80 and 82,865.60 is: 124,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,867.20 : 194,800.80 = 82,865.60 : x
  2. Step 2: Convert to fraction form
    129,867.20/194,800.80 = 82,865.60/x
  3. Step 3: Cross multiply
    129,867.20x = 194,800.80 × 82,865.60
  4. Step 4: Simplify right side
    129,867.20x = 16,142,285,172.48
  5. Step 5: Solve for x
    x = 16,142,285,172.48/129,867.20
  6. Step 6: Final answer
    x = 124,298.40

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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.