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Finding the Fourth Proportional to 188,979, 260,791.02 and 104,095.86

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Solution

The fourth proportional to 188,979, 260,791.02 and 104,095.86 is: 143,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,979 : 260,791.02 = 104,095.86 : x
  2. Step 2: Convert to fraction form
    188,979/260,791.02 = 104,095.86/x
  3. Step 3: Cross multiply
    188,979x = 260,791.02 × 104,095.86
  4. Step 4: Simplify right side
    188,979x = 27,147,265,507.18
  5. Step 5: Solve for x
    x = 27,147,265,507.18/188,979
  6. Step 6: Final answer
    x = 143,652.29

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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.