Home / 222,638.11-307,241.65-120,663.54

Finding the Fourth Proportional to 222,638.11, 307,241.65 and 120,663.54

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Solution

The fourth proportional to 222,638.11, 307,241.65 and 120,663.54 is: 166,516.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,638.11 : 307,241.65 = 120,663.54 : x
  2. Step 2: Convert to fraction form
    222,638.11/307,241.65 = 120,663.54/x
  3. Step 3: Cross multiply
    222,638.11x = 307,241.65 × 120,663.54
  4. Step 4: Simplify right side
    222,638.11x = 37,072,864,596.54
  5. Step 5: Solve for x
    x = 37,072,864,596.54/222,638.11
  6. Step 6: Final answer
    x = 166,516.26

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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.