Home / 188,078.54-259,548.35-107,507.79

Finding the Fourth Proportional to 188,078.54, 259,548.35 and 107,507.79

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Solution

The fourth proportional to 188,078.54, 259,548.35 and 107,507.79 is: 148,360.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,078.54 : 259,548.35 = 107,507.79 : x
  2. Step 2: Convert to fraction form
    188,078.54/259,548.35 = 107,507.79/x
  3. Step 3: Cross multiply
    188,078.54x = 259,548.35 × 107,507.79
  4. Step 4: Simplify right side
    188,078.54x = 27,903,469,775.42
  5. Step 5: Solve for x
    x = 27,903,469,775.42/188,078.54
  6. Step 6: Final answer
    x = 148,360.74

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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.