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Finding the Fourth Proportional to 187,871.82, 259,257.74 and 107,297.67

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Solution

The fourth proportional to 187,871.82, 259,257.74 and 107,297.67 is: 148,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,871.82 : 259,257.74 = 107,297.67 : x
  2. Step 2: Convert to fraction form
    187,871.82/259,257.74 = 107,297.67/x
  3. Step 3: Cross multiply
    187,871.82x = 259,257.74 × 107,297.67
  4. Step 4: Simplify right side
    187,871.82x = 27,817,751,431.47
  5. Step 5: Solve for x
    x = 27,817,751,431.47/187,871.82
  6. Step 6: Final answer
    x = 148,067.72

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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.