Home / 154,154.88-231,231.12-79,296

Finding the Fourth Proportional to 154,154.88, 231,231.12 and 79,296

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Solution

The fourth proportional to 154,154.88, 231,231.12 and 79,296 is: 118,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,154.88 : 231,231.12 = 79,296 : x
  2. Step 2: Convert to fraction form
    154,154.88/231,231.12 = 79,296/x
  3. Step 3: Cross multiply
    154,154.88x = 231,231.12 × 79,296
  4. Step 4: Simplify right side
    154,154.88x = 18,335,702,891.52
  5. Step 5: Solve for x
    x = 18,335,702,891.52/154,154.88
  6. Step 6: Final answer
    x = 118,943.38

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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.