Home / 168,858.96-253,375.64-74,155.60

Finding the Fourth Proportional to 168,858.96, 253,375.64 and 74,155.60

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Solution

The fourth proportional to 168,858.96, 253,375.64 and 74,155.60 is: 111,271.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,858.96 : 253,375.64 = 74,155.60 : x
  2. Step 2: Convert to fraction form
    168,858.96/253,375.64 = 74,155.60/x
  3. Step 3: Cross multiply
    168,858.96x = 253,375.64 × 74,155.60
  4. Step 4: Simplify right side
    168,858.96x = 18,789,222,609.58
  5. Step 5: Solve for x
    x = 18,789,222,609.58/168,858.96
  6. Step 6: Final answer
    x = 111,271.69

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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.