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Finding the Fourth Proportional to 143,696.43, 215,735.43 and 122,770.89

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Solution

The fourth proportional to 143,696.43, 215,735.43 and 122,770.89 is: 184,319.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,696.43 : 215,735.43 = 122,770.89 : x
  2. Step 2: Convert to fraction form
    143,696.43/215,735.43 = 122,770.89/x
  3. Step 3: Cross multiply
    143,696.43x = 215,735.43 × 122,770.89
  4. Step 4: Simplify right side
    143,696.43x = 26,486,030,745.63
  5. Step 5: Solve for x
    x = 26,486,030,745.63/143,696.43
  6. Step 6: Final answer
    x = 184,319.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.