Home / 187,749.72-259,029.86-107,119.08

Finding the Fourth Proportional to 187,749.72, 259,029.86 and 107,119.08

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Solution

The fourth proportional to 187,749.72, 259,029.86 and 107,119.08 is: 147,787.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,749.72 : 259,029.86 = 107,119.08 : x
  2. Step 2: Convert to fraction form
    187,749.72/259,029.86 = 107,119.08/x
  3. Step 3: Cross multiply
    187,749.72x = 259,029.86 × 107,119.08
  4. Step 4: Simplify right side
    187,749.72x = 27,747,040,295.73
  5. Step 5: Solve for x
    x = 27,747,040,295.73/187,749.72
  6. Step 6: Final answer
    x = 147,787.39

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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.