Home / 168,997.60-253,628.50-74,293.21

Finding the Fourth Proportional to 168,997.60, 253,628.50 and 74,293.21

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Solution

The fourth proportional to 168,997.60, 253,628.50 and 74,293.21 is: 111,497.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,997.60 : 253,628.50 = 74,293.21 : x
  2. Step 2: Convert to fraction form
    168,997.60/253,628.50 = 74,293.21/x
  3. Step 3: Cross multiply
    168,997.60x = 253,628.50 × 74,293.21
  4. Step 4: Simplify right side
    168,997.60x = 18,842,875,683.09
  5. Step 5: Solve for x
    x = 18,842,875,683.09/168,997.60
  6. Step 6: Final answer
    x = 111,497.89

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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.