Home / 119,772.36-179,667.68-69,857.44

Finding the Fourth Proportional to 119,772.36, 179,667.68 and 69,857.44

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Solution

The fourth proportional to 119,772.36, 179,667.68 and 69,857.44 is: 104,791.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,772.36 : 179,667.68 = 69,857.44 : x
  2. Step 2: Convert to fraction form
    119,772.36/179,667.68 = 69,857.44/x
  3. Step 3: Cross multiply
    119,772.36x = 179,667.68 × 69,857.44
  4. Step 4: Simplify right side
    119,772.36x = 12,551,124,175.54
  5. Step 5: Solve for x
    x = 12,551,124,175.54/119,772.36
  6. Step 6: Final answer
    x = 104,791.49

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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.