Home / 285,412.20-428,204.68-107,973.60

Finding the Fourth Proportional to 285,412.20, 428,204.68 and 107,973.60

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Solution

The fourth proportional to 285,412.20, 428,204.68 and 107,973.60 is: 161,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,412.20 : 428,204.68 = 107,973.60 : x
  2. Step 2: Convert to fraction form
    285,412.20/428,204.68 = 107,973.60/x
  3. Step 3: Cross multiply
    285,412.20x = 428,204.68 × 107,973.60
  4. Step 4: Simplify right side
    285,412.20x = 46,234,800,836.45
  5. Step 5: Solve for x
    x = 46,234,800,836.45/285,412.20
  6. Step 6: Final answer
    x = 161,993.08

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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.