Home / 168,845.40-253,268.10-105,859.80

Finding the Fourth Proportional to 168,845.40, 253,268.10 and 105,859.80

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Solution

The fourth proportional to 168,845.40, 253,268.10 and 105,859.80 is: 158,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,845.40 : 253,268.10 = 105,859.80 : x
  2. Step 2: Convert to fraction form
    168,845.40/253,268.10 = 105,859.80/x
  3. Step 3: Cross multiply
    168,845.40x = 253,268.10 × 105,859.80
  4. Step 4: Simplify right side
    168,845.40x = 26,810,910,412.38
  5. Step 5: Solve for x
    x = 26,810,910,412.38/168,845.40
  6. Step 6: Final answer
    x = 158,789.70

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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.