Home / 133,078.40-199,517.76-80,477.12

Finding the Fourth Proportional to 133,078.40, 199,517.76 and 80,477.12

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Solution

The fourth proportional to 133,078.40, 199,517.76 and 80,477.12 is: 120,655.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,078.40 : 199,517.76 = 80,477.12 : x
  2. Step 2: Convert to fraction form
    133,078.40/199,517.76 = 80,477.12/x
  3. Step 3: Cross multiply
    133,078.40x = 199,517.76 × 80,477.12
  4. Step 4: Simplify right side
    133,078.40x = 16,056,614,713.65
  5. Step 5: Solve for x
    x = 16,056,614,713.65/133,078.40
  6. Step 6: Final answer
    x = 120,655.30

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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.