Home / 133,055.28-199,575.36-80,450.64

Finding the Fourth Proportional to 133,055.28, 199,575.36 and 80,450.64

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Solution

The fourth proportional to 133,055.28, 199,575.36 and 80,450.64 is: 120,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.28 : 199,575.36 = 80,450.64 : x
  2. Step 2: Convert to fraction form
    133,055.28/199,575.36 = 80,450.64/x
  3. Step 3: Cross multiply
    133,055.28x = 199,575.36 × 80,450.64
  4. Step 4: Simplify right side
    133,055.28x = 16,055,965,440.23
  5. Step 5: Solve for x
    x = 16,055,965,440.23/133,055.28
  6. Step 6: Final answer
    x = 120,671.39

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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.