Home / 187,971.28-259,376.37-107,404.02

Finding the Fourth Proportional to 187,971.28, 259,376.37 and 107,404.02

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Solution

The fourth proportional to 187,971.28, 259,376.37 and 107,404.02 is: 148,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,971.28 : 259,376.37 = 107,404.02 : x
  2. Step 2: Convert to fraction form
    187,971.28/259,376.37 = 107,404.02/x
  3. Step 3: Cross multiply
    187,971.28x = 259,376.37 × 107,404.02
  4. Step 4: Simplify right side
    187,971.28x = 27,858,062,997.11
  5. Step 5: Solve for x
    x = 27,858,062,997.11/187,971.28
  6. Step 6: Final answer
    x = 148,203.83

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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.