Home / 170,653.28-255,772.35-120,747.78

Finding the Fourth Proportional to 170,653.28, 255,772.35 and 120,747.78

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Solution

The fourth proportional to 170,653.28, 255,772.35 and 120,747.78 is: 180,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,653.28 : 255,772.35 = 120,747.78 : x
  2. Step 2: Convert to fraction form
    170,653.28/255,772.35 = 120,747.78/x
  3. Step 3: Cross multiply
    170,653.28x = 255,772.35 × 120,747.78
  4. Step 4: Simplify right side
    170,653.28x = 30,883,943,447.88
  5. Step 5: Solve for x
    x = 30,883,943,447.88/170,653.28
  6. Step 6: Final answer
    x = 180,974.81

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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.