Home / 285,310.85-427,929.35-107,794.79

Finding the Fourth Proportional to 285,310.85, 427,929.35 and 107,794.79

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Solution

The fourth proportional to 285,310.85, 427,929.35 and 107,794.79 is: 161,678.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,310.85 : 427,929.35 = 107,794.79 : x
  2. Step 2: Convert to fraction form
    285,310.85/427,929.35 = 107,794.79/x
  3. Step 3: Cross multiply
    285,310.85x = 427,929.35 × 107,794.79
  4. Step 4: Simplify right side
    285,310.85x = 46,128,551,739.47
  5. Step 5: Solve for x
    x = 46,128,551,739.47/285,310.85
  6. Step 6: Final answer
    x = 161,678.23

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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.