Home / 99,072.49-136,735.04-63,286.33

Finding the Fourth Proportional to 99,072.49, 136,735.04 and 63,286.33

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Solution

The fourth proportional to 99,072.49, 136,735.04 and 63,286.33 is: 87,344.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072.49 : 136,735.04 = 63,286.33 : x
  2. Step 2: Convert to fraction form
    99,072.49/136,735.04 = 63,286.33/x
  3. Step 3: Cross multiply
    99,072.49x = 136,735.04 × 63,286.33
  4. Step 4: Simplify right side
    99,072.49x = 8,653,458,864.00
  5. Step 5: Solve for x
    x = 8,653,458,864.00/99,072.49
  6. Step 6: Final answer
    x = 87,344.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.