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Finding the Fourth Proportional to 148,390.89, 204,850.43 and 84,716.37

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Solution

The fourth proportional to 148,390.89, 204,850.43 and 84,716.37 is: 116,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,390.89 : 204,850.43 = 84,716.37 : x
  2. Step 2: Convert to fraction form
    148,390.89/204,850.43 = 84,716.37/x
  3. Step 3: Cross multiply
    148,390.89x = 204,850.43 × 84,716.37
  4. Step 4: Simplify right side
    148,390.89x = 17,354,184,398.96
  5. Step 5: Solve for x
    x = 17,354,184,398.96/148,390.89
  6. Step 6: Final answer
    x = 116,949.12

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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.