Home / 135,823.83-203,935.68-75,969.56

Finding the Fourth Proportional to 135,823.83, 203,935.68 and 75,969.56

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Solution

The fourth proportional to 135,823.83, 203,935.68 and 75,969.56 is: 114,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,823.83 : 203,935.68 = 75,969.56 : x
  2. Step 2: Convert to fraction form
    135,823.83/203,935.68 = 75,969.56/x
  3. Step 3: Cross multiply
    135,823.83x = 203,935.68 × 75,969.56
  4. Step 4: Simplify right side
    135,823.83x = 15,492,902,858.22
  5. Step 5: Solve for x
    x = 15,492,902,858.22/135,823.83
  6. Step 6: Final answer
    x = 114,066.16

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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.