Home / 129,563.28-194,448.58-67,251.60

Finding the Fourth Proportional to 129,563.28, 194,448.58 and 67,251.60

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Solution

The fourth proportional to 129,563.28, 194,448.58 and 67,251.60 is: 100,931.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,563.28 : 194,448.58 = 67,251.60 : x
  2. Step 2: Convert to fraction form
    129,563.28/194,448.58 = 67,251.60/x
  3. Step 3: Cross multiply
    129,563.28x = 194,448.58 × 67,251.60
  4. Step 4: Simplify right side
    129,563.28x = 13,076,978,122.73
  5. Step 5: Solve for x
    x = 13,076,978,122.73/129,563.28
  6. Step 6: Final answer
    x = 100,931.21

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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.