Home / 146,716.20-219,815.10-120,277.80

Finding the Fourth Proportional to 146,716.20, 219,815.10 and 120,277.80

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Solution

The fourth proportional to 146,716.20, 219,815.10 and 120,277.80 is: 180,204.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,716.20 : 219,815.10 = 120,277.80 : x
  2. Step 2: Convert to fraction form
    146,716.20/219,815.10 = 120,277.80/x
  3. Step 3: Cross multiply
    146,716.20x = 219,815.10 × 120,277.80
  4. Step 4: Simplify right side
    146,716.20x = 26,438,876,634.78
  5. Step 5: Solve for x
    x = 26,438,876,634.78/146,716.20
  6. Step 6: Final answer
    x = 180,204.21

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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.