Home / 168,739.86-253,114.32-73,921.26

Finding the Fourth Proportional to 168,739.86, 253,114.32 and 73,921.26

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Solution

The fourth proportional to 168,739.86, 253,114.32 and 73,921.26 is: 110,883.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,739.86 : 253,114.32 = 73,921.26 : x
  2. Step 2: Convert to fraction form
    168,739.86/253,114.32 = 73,921.26/x
  3. Step 3: Cross multiply
    168,739.86x = 253,114.32 × 73,921.26
  4. Step 4: Simplify right side
    168,739.86x = 18,710,529,458.44
  5. Step 5: Solve for x
    x = 18,710,529,458.44/168,739.86
  6. Step 6: Final answer
    x = 110,883.87

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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.