Home / 90,185.44-135,334.32-43,443.04

Finding the Fourth Proportional to 90,185.44, 135,334.32 and 43,443.04

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Solution

The fourth proportional to 90,185.44, 135,334.32 and 43,443.04 is: 65,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,185.44 : 135,334.32 = 43,443.04 : x
  2. Step 2: Convert to fraction form
    90,185.44/135,334.32 = 43,443.04/x
  3. Step 3: Cross multiply
    90,185.44x = 135,334.32 × 43,443.04
  4. Step 4: Simplify right side
    90,185.44x = 5,879,334,277.13
  5. Step 5: Solve for x
    x = 5,879,334,277.13/90,185.44
  6. Step 6: Final answer
    x = 65,191.61

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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.