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Finding the Fourth Proportional to 133,055.40, 199,583.10 and 131,305.80

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Solution

The fourth proportional to 133,055.40, 199,583.10 and 131,305.80 is: 196,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,055.40 : 199,583.10 = 131,305.80 : x
  2. Step 2: Convert to fraction form
    133,055.40/199,583.10 = 131,305.80/x
  3. Step 3: Cross multiply
    133,055.40x = 199,583.10 × 131,305.80
  4. Step 4: Simplify right side
    133,055.40x = 26,206,418,611.98
  5. Step 5: Solve for x
    x = 26,206,418,611.98/133,055.40
  6. Step 6: Final answer
    x = 196,958.70

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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.