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Finding the Fourth Proportional to 188,963.04, 260,768.32 and 104,080

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Solution

The fourth proportional to 188,963.04, 260,768.32 and 104,080 is: 143,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,963.04 : 260,768.32 = 104,080 : x
  2. Step 2: Convert to fraction form
    188,963.04/260,768.32 = 104,080/x
  3. Step 3: Cross multiply
    188,963.04x = 260,768.32 × 104,080
  4. Step 4: Simplify right side
    188,963.04x = 27,140,766,745.60
  5. Step 5: Solve for x
    x = 27,140,766,745.60/188,963.04
  6. Step 6: Final answer
    x = 143,630.03

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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.