Home / 168,310.48-231,986.64-147,840.16

Finding the Fourth Proportional to 168,310.48, 231,986.64 and 147,840.16

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Solution

The fourth proportional to 168,310.48, 231,986.64 and 147,840.16 is: 203,771.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,310.48 : 231,986.64 = 147,840.16 : x
  2. Step 2: Convert to fraction form
    168,310.48/231,986.64 = 147,840.16/x
  3. Step 3: Cross multiply
    168,310.48x = 231,986.64 × 147,840.16
  4. Step 4: Simplify right side
    168,310.48x = 34,296,941,975.46
  5. Step 5: Solve for x
    x = 34,296,941,975.46/168,310.48
  6. Step 6: Final answer
    x = 203,771.87

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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.