Home / 154,137.24-231,217.20-65,380.68

Finding the Fourth Proportional to 154,137.24, 231,217.20 and 65,380.68

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Solution

The fourth proportional to 154,137.24, 231,217.20 and 65,380.68 is: 98,075.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,137.24 : 231,217.20 = 65,380.68 : x
  2. Step 2: Convert to fraction form
    154,137.24/231,217.20 = 65,380.68/x
  3. Step 3: Cross multiply
    154,137.24x = 231,217.20 × 65,380.68
  4. Step 4: Simplify right side
    154,137.24x = 15,117,137,763.70
  5. Step 5: Solve for x
    x = 15,117,137,763.70/154,137.24
  6. Step 6: Final answer
    x = 98,075.83

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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.