Home / 168,026.20-231,773.64-99,997.60

Finding the Fourth Proportional to 168,026.20, 231,773.64 and 99,997.60

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Solution

The fourth proportional to 168,026.20, 231,773.64 and 99,997.60 is: 137,935.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,026.20 : 231,773.64 = 99,997.60 : x
  2. Step 2: Convert to fraction form
    168,026.20/231,773.64 = 99,997.60/x
  3. Step 3: Cross multiply
    168,026.20x = 231,773.64 × 99,997.60
  4. Step 4: Simplify right side
    168,026.20x = 23,176,807,743.26
  5. Step 5: Solve for x
    x = 23,176,807,743.26/168,026.20
  6. Step 6: Final answer
    x = 137,935.68

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1.5x scale

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.