Home / 154,458.44-231,721.61-87,929.72

Finding the Fourth Proportional to 154,458.44, 231,721.61 and 87,929.72

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Solution

The fourth proportional to 154,458.44, 231,721.61 and 87,929.72 is: 131,913.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,458.44 : 231,721.61 = 87,929.72 : x
  2. Step 2: Convert to fraction form
    154,458.44/231,721.61 = 87,929.72/x
  3. Step 3: Cross multiply
    154,458.44x = 231,721.61 × 87,929.72
  4. Step 4: Simplify right side
    154,458.44x = 20,375,215,346.47
  5. Step 5: Solve for x
    x = 20,375,215,346.47/154,458.44
  6. Step 6: Final answer
    x = 131,913.91

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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.