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Finding the Fourth Proportional to 188,546.73, 260,205 and 103,681.41

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Solution

The fourth proportional to 188,546.73, 260,205 and 103,681.41 is: 143,086.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,546.73 : 260,205 = 103,681.41 : x
  2. Step 2: Convert to fraction form
    188,546.73/260,205 = 103,681.41/x
  3. Step 3: Cross multiply
    188,546.73x = 260,205 × 103,681.41
  4. Step 4: Simplify right side
    188,546.73x = 26,978,421,289.05
  5. Step 5: Solve for x
    x = 26,978,421,289.05/188,546.73
  6. Step 6: Final answer
    x = 143,086.13

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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.