Home / 133,150.40-199,725.60-80,662.40

Finding the Fourth Proportional to 133,150.40, 199,725.60 and 80,662.40

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Solution

The fourth proportional to 133,150.40, 199,725.60 and 80,662.40 is: 120,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,150.40 : 199,725.60 = 80,662.40 : x
  2. Step 2: Convert to fraction form
    133,150.40/199,725.60 = 80,662.40/x
  3. Step 3: Cross multiply
    133,150.40x = 199,725.60 × 80,662.40
  4. Step 4: Simplify right side
    133,150.40x = 16,110,346,237.44
  5. Step 5: Solve for x
    x = 16,110,346,237.44/133,150.40
  6. Step 6: Final answer
    x = 120,993.60

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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.