Home / 103,439.20-155,144.40-33,325.60

Finding the Fourth Proportional to 103,439.20, 155,144.40 and 33,325.60

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Solution

The fourth proportional to 103,439.20, 155,144.40 and 33,325.60 is: 49,983.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439.20 : 155,144.40 = 33,325.60 : x
  2. Step 2: Convert to fraction form
    103,439.20/155,144.40 = 33,325.60/x
  3. Step 3: Cross multiply
    103,439.20x = 155,144.40 × 33,325.60
  4. Step 4: Simplify right side
    103,439.20x = 5,170,280,216.64
  5. Step 5: Solve for x
    x = 5,170,280,216.64/103,439.20
  6. Step 6: Final answer
    x = 49,983.76

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1.5x scale

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.