Home / 187,896-259,432.56-120,944.64

Finding the Fourth Proportional to 187,896, 259,432.56 and 120,944.64

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Solution

The fourth proportional to 187,896, 259,432.56 and 120,944.64 is: 166,991.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,896 : 259,432.56 = 120,944.64 : x
  2. Step 2: Convert to fraction form
    187,896/259,432.56 = 120,944.64/x
  3. Step 3: Cross multiply
    187,896x = 259,432.56 × 120,944.64
  4. Step 4: Simplify right side
    187,896x = 31,376,977,573.48
  5. Step 5: Solve for x
    x = 31,376,977,573.48/187,896
  6. Step 6: Final answer
    x = 166,991.19

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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.