Home / 154,459.44-231,723.11-87,930.72

Finding the Fourth Proportional to 154,459.44, 231,723.11 and 87,930.72

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Solution

The fourth proportional to 154,459.44, 231,723.11 and 87,930.72 is: 131,915.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,459.44 : 231,723.11 = 87,930.72 : x
  2. Step 2: Convert to fraction form
    154,459.44/231,723.11 = 87,930.72/x
  3. Step 3: Cross multiply
    154,459.44x = 231,723.11 × 87,930.72
  4. Step 4: Simplify right side
    154,459.44x = 20,375,579,902.94
  5. Step 5: Solve for x
    x = 20,375,579,902.94/154,459.44
  6. Step 6: Final answer
    x = 131,915.41

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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.