Home / 167,629.37-231,003.69-138,990.60

Finding the Fourth Proportional to 167,629.37, 231,003.69 and 138,990.60

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Solution

The fourth proportional to 167,629.37, 231,003.69 and 138,990.60 is: 191,537.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,629.37 : 231,003.69 = 138,990.60 : x
  2. Step 2: Convert to fraction form
    167,629.37/231,003.69 = 138,990.60/x
  3. Step 3: Cross multiply
    167,629.37x = 231,003.69 × 138,990.60
  4. Step 4: Simplify right side
    167,629.37x = 32,107,341,475.31
  5. Step 5: Solve for x
    x = 32,107,341,475.31/167,629.37
  6. Step 6: Final answer
    x = 191,537.69

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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.