Home / 132,611.25-198,958.38-85,279.79

Finding the Fourth Proportional to 132,611.25, 198,958.38 and 85,279.79

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Solution

The fourth proportional to 132,611.25, 198,958.38 and 85,279.79 is: 127,946.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,611.25 : 198,958.38 = 85,279.79 : x
  2. Step 2: Convert to fraction form
    132,611.25/198,958.38 = 85,279.79/x
  3. Step 3: Cross multiply
    132,611.25x = 198,958.38 × 85,279.79
  4. Step 4: Simplify right side
    132,611.25x = 16,967,127,923.60
  5. Step 5: Solve for x
    x = 16,967,127,923.60/132,611.25
  6. Step 6: Final answer
    x = 127,946.37

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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.