Home / 90,321.22-135,500.85-34,160.08

Finding the Fourth Proportional to 90,321.22, 135,500.85 and 34,160.08

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Solution

The fourth proportional to 90,321.22, 135,500.85 and 34,160.08 is: 51,247.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,321.22 : 135,500.85 = 34,160.08 : x
  2. Step 2: Convert to fraction form
    90,321.22/135,500.85 = 34,160.08/x
  3. Step 3: Cross multiply
    90,321.22x = 135,500.85 × 34,160.08
  4. Step 4: Simplify right side
    90,321.22x = 4,628,719,198.56
  5. Step 5: Solve for x
    x = 4,628,719,198.56/90,321.22
  6. Step 6: Final answer
    x = 51,247.31

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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.