Home / 185,868.84-256,502.79-100,991.37

Finding the Fourth Proportional to 185,868.84, 256,502.79 and 100,991.37

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Solution

The fourth proportional to 185,868.84, 256,502.79 and 100,991.37 is: 139,370.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,868.84 : 256,502.79 = 100,991.37 : x
  2. Step 2: Convert to fraction form
    185,868.84/256,502.79 = 100,991.37/x
  3. Step 3: Cross multiply
    185,868.84x = 256,502.79 × 100,991.37
  4. Step 4: Simplify right side
    185,868.84x = 25,904,568,170.92
  5. Step 5: Solve for x
    x = 25,904,568,170.92/185,868.84
  6. Step 6: Final answer
    x = 139,370.15

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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.