Home / 285,456.08-428,244.24-107,959.20

Finding the Fourth Proportional to 285,456.08, 428,244.24 and 107,959.20

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Solution

The fourth proportional to 285,456.08, 428,244.24 and 107,959.20 is: 161,961.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,456.08 : 428,244.24 = 107,959.20 : x
  2. Step 2: Convert to fraction form
    285,456.08/428,244.24 = 107,959.20/x
  3. Step 3: Cross multiply
    285,456.08x = 428,244.24 × 107,959.20
  4. Step 4: Simplify right side
    285,456.08x = 46,232,905,555.01
  5. Step 5: Solve for x
    x = 46,232,905,555.01/285,456.08
  6. Step 6: Final answer
    x = 161,961.54

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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.