Home / 151,972.09-228,023.75-81,837.43

Finding the Fourth Proportional to 151,972.09, 228,023.75 and 81,837.43

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Solution

The fourth proportional to 151,972.09, 228,023.75 and 81,837.43 is: 122,791.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,972.09 : 228,023.75 = 81,837.43 : x
  2. Step 2: Convert to fraction form
    151,972.09/228,023.75 = 81,837.43/x
  3. Step 3: Cross multiply
    151,972.09x = 228,023.75 × 81,837.43
  4. Step 4: Simplify right side
    151,972.09x = 18,660,877,678.96
  5. Step 5: Solve for x
    x = 18,660,877,678.96/151,972.09
  6. Step 6: Final answer
    x = 122,791.48

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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.