Home / 154,768.52-231,841.74-80,741

Finding the Fourth Proportional to 154,768.52, 231,841.74 and 80,741

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Solution

The fourth proportional to 154,768.52, 231,841.74 and 80,741 is: 120,949.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,768.52 : 231,841.74 = 80,741 : x
  2. Step 2: Convert to fraction form
    154,768.52/231,841.74 = 80,741/x
  3. Step 3: Cross multiply
    154,768.52x = 231,841.74 × 80,741
  4. Step 4: Simplify right side
    154,768.52x = 18,719,133,929.34
  5. Step 5: Solve for x
    x = 18,719,133,929.34/154,768.52
  6. Step 6: Final answer
    x = 120,949.23

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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.