Home / 90,190.89-135,334.33-50,750.78

Finding the Fourth Proportional to 90,190.89, 135,334.33 and 50,750.78

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Solution

The fourth proportional to 90,190.89, 135,334.33 and 50,750.78 is: 76,153.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,190.89 : 135,334.33 = 50,750.78 : x
  2. Step 2: Convert to fraction form
    90,190.89/135,334.33 = 50,750.78/x
  3. Step 3: Cross multiply
    90,190.89x = 135,334.33 × 50,750.78
  4. Step 4: Simplify right side
    90,190.89x = 6,868,322,004.73
  5. Step 5: Solve for x
    x = 6,868,322,004.73/90,190.89
  6. Step 6: Final answer
    x = 76,153.17

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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.