Home / 155,443.75-214,512.38-88,375.75

Finding the Fourth Proportional to 155,443.75, 214,512.38 and 88,375.75

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Solution

The fourth proportional to 155,443.75, 214,512.38 and 88,375.75 is: 121,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,443.75 : 214,512.38 = 88,375.75 : x
  2. Step 2: Convert to fraction form
    155,443.75/214,512.38 = 88,375.75/x
  3. Step 3: Cross multiply
    155,443.75x = 214,512.38 × 88,375.75
  4. Step 4: Simplify right side
    155,443.75x = 18,957,692,466.79
  5. Step 5: Solve for x
    x = 18,957,692,466.79/155,443.75
  6. Step 6: Final answer
    x = 121,958.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.