Home / 154,137.99-231,218.33-65,381.43

Finding the Fourth Proportional to 154,137.99, 231,218.33 and 65,381.43

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Solution

The fourth proportional to 154,137.99, 231,218.33 and 65,381.43 is: 98,076.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,137.99 : 231,218.33 = 65,381.43 : x
  2. Step 2: Convert to fraction form
    154,137.99/231,218.33 = 65,381.43/x
  3. Step 3: Cross multiply
    154,137.99x = 231,218.33 × 65,381.43
  4. Step 4: Simplify right side
    154,137.99x = 15,117,384,730.70
  5. Step 5: Solve for x
    x = 15,117,384,730.70/154,137.99
  6. Step 6: Final answer
    x = 98,076.96

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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.