Home / 165,242.82-228,035.69-89,791.30

Finding the Fourth Proportional to 165,242.82, 228,035.69 and 89,791.30

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Solution

The fourth proportional to 165,242.82, 228,035.69 and 89,791.30 is: 123,912.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,242.82 : 228,035.69 = 89,791.30 : x
  2. Step 2: Convert to fraction form
    165,242.82/228,035.69 = 89,791.30/x
  3. Step 3: Cross multiply
    165,242.82x = 228,035.69 × 89,791.30
  4. Step 4: Simplify right side
    165,242.82x = 20,475,621,051.50
  5. Step 5: Solve for x
    x = 20,475,621,051.50/165,242.82
  6. Step 6: Final answer
    x = 123,912.32

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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.