Home / 107,817.20-161,725.80-106,067.60

Finding the Fourth Proportional to 107,817.20, 161,725.80 and 106,067.60

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Solution

The fourth proportional to 107,817.20, 161,725.80 and 106,067.60 is: 159,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,817.20 : 161,725.80 = 106,067.60 : x
  2. Step 2: Convert to fraction form
    107,817.20/161,725.80 = 106,067.60/x
  3. Step 3: Cross multiply
    107,817.20x = 161,725.80 × 106,067.60
  4. Step 4: Simplify right side
    107,817.20x = 17,153,867,464.08
  5. Step 5: Solve for x
    x = 17,153,867,464.08/107,817.20
  6. Step 6: Final answer
    x = 159,101.40

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1.5x scale

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.