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Finding the Fourth Proportional to 188,902, 260,684.76 and 104,018.86

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Solution

The fourth proportional to 188,902, 260,684.76 and 104,018.86 is: 143,546.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,902 : 260,684.76 = 104,018.86 : x
  2. Step 2: Convert to fraction form
    188,902/260,684.76 = 104,018.86/x
  3. Step 3: Cross multiply
    188,902x = 260,684.76 × 104,018.86
  4. Step 4: Simplify right side
    188,902x = 27,116,131,554.57
  5. Step 5: Solve for x
    x = 27,116,131,554.57/188,902
  6. Step 6: Final answer
    x = 143,546.03

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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.