Home / 154,147.50-231,267.87-109,255.68

Finding the Fourth Proportional to 154,147.50, 231,267.87 and 109,255.68

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Solution

The fourth proportional to 154,147.50, 231,267.87 and 109,255.68 is: 163,916.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,147.50 : 231,267.87 = 109,255.68 : x
  2. Step 2: Convert to fraction form
    154,147.50/231,267.87 = 109,255.68/x
  3. Step 3: Cross multiply
    154,147.50x = 231,267.87 × 109,255.68
  4. Step 4: Simplify right side
    154,147.50x = 25,267,328,399.00
  5. Step 5: Solve for x
    x = 25,267,328,399.00/154,147.50
  6. Step 6: Final answer
    x = 163,916.56

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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.