Home / 226,138.62-312,096.15-129,351.42

Finding the Fourth Proportional to 226,138.62, 312,096.15 and 129,351.42

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Solution

The fourth proportional to 226,138.62, 312,096.15 and 129,351.42 is: 178,519.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,138.62 : 312,096.15 = 129,351.42 : x
  2. Step 2: Convert to fraction form
    226,138.62/312,096.15 = 129,351.42/x
  3. Step 3: Cross multiply
    226,138.62x = 312,096.15 × 129,351.42
  4. Step 4: Simplify right side
    226,138.62x = 40,370,080,179.03
  5. Step 5: Solve for x
    x = 40,370,080,179.03/226,138.62
  6. Step 6: Final answer
    x = 178,519.18

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1.5x scale

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.