Home / 208,923.20-313,255.20-120,132.80

Finding the Fourth Proportional to 208,923.20, 313,255.20 and 120,132.80

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Solution

The fourth proportional to 208,923.20, 313,255.20 and 120,132.80 is: 180,124.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,923.20 : 313,255.20 = 120,132.80 : x
  2. Step 2: Convert to fraction form
    208,923.20/313,255.20 = 120,132.80/x
  3. Step 3: Cross multiply
    208,923.20x = 313,255.20 × 120,132.80
  4. Step 4: Simplify right side
    208,923.20x = 37,632,224,290.56
  5. Step 5: Solve for x
    x = 37,632,224,290.56/208,923.20
  6. Step 6: Final answer
    x = 180,124.68

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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.