Home / 168,735.93-253,228.22-79,989.09

Finding the Fourth Proportional to 168,735.93, 253,228.22 and 79,989.09

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Solution

The fourth proportional to 168,735.93, 253,228.22 and 79,989.09 is: 120,042.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,735.93 : 253,228.22 = 79,989.09 : x
  2. Step 2: Convert to fraction form
    168,735.93/253,228.22 = 79,989.09/x
  3. Step 3: Cross multiply
    168,735.93x = 253,228.22 × 79,989.09
  4. Step 4: Simplify right side
    168,735.93x = 20,255,494,280.47
  5. Step 5: Solve for x
    x = 20,255,494,280.47/168,735.93
  6. Step 6: Final answer
    x = 120,042.57

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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.