Home / 146,145.60-219,218.40-75,286.80

Finding the Fourth Proportional to 146,145.60, 219,218.40 and 75,286.80

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Solution

The fourth proportional to 146,145.60, 219,218.40 and 75,286.80 is: 112,930.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,145.60 : 219,218.40 = 75,286.80 : x
  2. Step 2: Convert to fraction form
    146,145.60/219,218.40 = 75,286.80/x
  3. Step 3: Cross multiply
    146,145.60x = 219,218.40 × 75,286.80
  4. Step 4: Simplify right side
    146,145.60x = 16,504,251,837.12
  5. Step 5: Solve for x
    x = 16,504,251,837.12/146,145.60
  6. Step 6: Final answer
    x = 112,930.20

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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.