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Finding the Fourth Proportional to 188,897, 260,677.86 and 104,013.86

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Solution

The fourth proportional to 188,897, 260,677.86 and 104,013.86 is: 143,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,897 : 260,677.86 = 104,013.86 : x
  2. Step 2: Convert to fraction form
    188,897/260,677.86 = 104,013.86/x
  3. Step 3: Cross multiply
    188,897x = 260,677.86 × 104,013.86
  4. Step 4: Simplify right side
    188,897x = 27,114,110,435.14
  5. Step 5: Solve for x
    x = 27,114,110,435.14/188,897
  6. Step 6: Final answer
    x = 143,539.13

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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.