Home / 230,481.06-345,641.64-80,718.05

Finding the Fourth Proportional to 230,481.06, 345,641.64 and 80,718.05

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Solution

The fourth proportional to 230,481.06, 345,641.64 and 80,718.05 is: 121,049.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,481.06 : 345,641.64 = 80,718.05 : x
  2. Step 2: Convert to fraction form
    230,481.06/345,641.64 = 80,718.05/x
  3. Step 3: Cross multiply
    230,481.06x = 345,641.64 × 80,718.05
  4. Step 4: Simplify right side
    230,481.06x = 27,899,517,148.70
  5. Step 5: Solve for x
    x = 27,899,517,148.70/230,481.06
  6. Step 6: Final answer
    x = 121,049.07

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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.