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Finding the Fourth Proportional to 135,388.60, 203,082.90 and 35,542.20

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Solution

The fourth proportional to 135,388.60, 203,082.90 and 35,542.20 is: 53,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,388.60 : 203,082.90 = 35,542.20 : x
  2. Step 2: Convert to fraction form
    135,388.60/203,082.90 = 35,542.20/x
  3. Step 3: Cross multiply
    135,388.60x = 203,082.90 × 35,542.20
  4. Step 4: Simplify right side
    135,388.60x = 7,218,013,048.38
  5. Step 5: Solve for x
    x = 7,218,013,048.38/135,388.60
  6. Step 6: Final answer
    x = 53,313.30

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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.