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Finding the Fourth Proportional to 135,753, 203,634.99 and 64,639.05

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Solution

The fourth proportional to 135,753, 203,634.99 and 64,639.05 is: 96,961.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,753 : 203,634.99 = 64,639.05 : x
  2. Step 2: Convert to fraction form
    135,753/203,634.99 = 64,639.05/x
  3. Step 3: Cross multiply
    135,753x = 203,634.99 × 64,639.05
  4. Step 4: Simplify right side
    135,753x = 13,162,772,300.36
  5. Step 5: Solve for x
    x = 13,162,772,300.36/135,753
  6. Step 6: Final answer
    x = 96,961.19

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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.