Home / 239,997.48-331,189-131,100.07

Finding the Fourth Proportional to 239,997.48, 331,189 and 131,100.07

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Solution

The fourth proportional to 239,997.48, 331,189 and 131,100.07 is: 180,913.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,997.48 : 331,189 = 131,100.07 : x
  2. Step 2: Convert to fraction form
    239,997.48/331,189 = 131,100.07/x
  3. Step 3: Cross multiply
    239,997.48x = 331,189 × 131,100.07
  4. Step 4: Simplify right side
    239,997.48x = 43,418,901,083.23
  5. Step 5: Solve for x
    x = 43,418,901,083.23/239,997.48
  6. Step 6: Final answer
    x = 180,913.99

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1.5x scale

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.