Home / 203,152.62-280,145.07-135,082.11

Finding the Fourth Proportional to 203,152.62, 280,145.07 and 135,082.11

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Solution

The fourth proportional to 203,152.62, 280,145.07 and 135,082.11 is: 186,276.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,152.62 : 280,145.07 = 135,082.11 : x
  2. Step 2: Convert to fraction form
    203,152.62/280,145.07 = 135,082.11/x
  3. Step 3: Cross multiply
    203,152.62x = 280,145.07 × 135,082.11
  4. Step 4: Simplify right side
    203,152.62x = 37,842,587,161.70
  5. Step 5: Solve for x
    x = 37,842,587,161.70/203,152.62
  6. Step 6: Final answer
    x = 186,276.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.