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Finding the Fourth Proportional to 90,203.74, 135,313.56 and 23,643.64

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Solution

The fourth proportional to 90,203.74, 135,313.56 and 23,643.64 is: 35,467.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,203.74 : 135,313.56 = 23,643.64 : x
  2. Step 2: Convert to fraction form
    90,203.74/135,313.56 = 23,643.64/x
  3. Step 3: Cross multiply
    90,203.74x = 135,313.56 × 23,643.64
  4. Step 4: Simplify right side
    90,203.74x = 3,199,305,099.76
  5. Step 5: Solve for x
    x = 3,199,305,099.76/90,203.74
  6. Step 6: Final answer
    x = 35,467.54

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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.