Home / 106,131.01-146,435.44-71,739.86

Finding the Fourth Proportional to 106,131.01, 146,435.44 and 71,739.86

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Solution

The fourth proportional to 106,131.01, 146,435.44 and 71,739.86 is: 98,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,131.01 : 146,435.44 = 71,739.86 : x
  2. Step 2: Convert to fraction form
    106,131.01/146,435.44 = 71,739.86/x
  3. Step 3: Cross multiply
    106,131.01x = 146,435.44 × 71,739.86
  4. Step 4: Simplify right side
    106,131.01x = 10,505,257,964.64
  5. Step 5: Solve for x
    x = 10,505,257,964.64/106,131.01
  6. Step 6: Final answer
    x = 98,983.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.