Home / 154,286.34-231,458.70-54,435.20

Finding the Fourth Proportional to 154,286.34, 231,458.70 and 54,435.20

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Solution

The fourth proportional to 154,286.34, 231,458.70 and 54,435.20 is: 81,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,286.34 : 231,458.70 = 54,435.20 : x
  2. Step 2: Convert to fraction form
    154,286.34/231,458.70 = 54,435.20/x
  3. Step 3: Cross multiply
    154,286.34x = 231,458.70 × 54,435.20
  4. Step 4: Simplify right side
    154,286.34x = 12,599,500,626.24
  5. Step 5: Solve for x
    x = 12,599,500,626.24/154,286.34
  6. Step 6: Final answer
    x = 81,663.10

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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.