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Finding the Fourth Proportional to 135,652.70, 203,479.05 and 100,223.30

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Solution

The fourth proportional to 135,652.70, 203,479.05 and 100,223.30 is: 150,334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,652.70 : 203,479.05 = 100,223.30 : x
  2. Step 2: Convert to fraction form
    135,652.70/203,479.05 = 100,223.30/x
  3. Step 3: Cross multiply
    135,652.70x = 203,479.05 × 100,223.30
  4. Step 4: Simplify right side
    135,652.70x = 20,393,341,871.87
  5. Step 5: Solve for x
    x = 20,393,341,871.87/135,652.70
  6. Step 6: Final answer
    x = 150,334.95

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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.