Home / 135,864-203,819.04-42,351.12

Finding the Fourth Proportional to 135,864, 203,819.04 and 42,351.12

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Solution

The fourth proportional to 135,864, 203,819.04 and 42,351.12 is: 63,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,864 : 203,819.04 = 42,351.12 : x
  2. Step 2: Convert to fraction form
    135,864/203,819.04 = 42,351.12/x
  3. Step 3: Cross multiply
    135,864x = 203,819.04 × 42,351.12
  4. Step 4: Simplify right side
    135,864x = 8,631,964,621.32
  5. Step 5: Solve for x
    x = 8,631,964,621.32/135,864
  6. Step 6: Final answer
    x = 63,533.86

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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.