Home / 185,792.29-256,383.79-100,909.15

Finding the Fourth Proportional to 185,792.29, 256,383.79 and 100,909.15

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Solution

The fourth proportional to 185,792.29, 256,383.79 and 100,909.15 is: 139,249.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,792.29 : 256,383.79 = 100,909.15 : x
  2. Step 2: Convert to fraction form
    185,792.29/256,383.79 = 100,909.15/x
  3. Step 3: Cross multiply
    185,792.29x = 256,383.79 × 100,909.15
  4. Step 4: Simplify right side
    185,792.29x = 25,871,469,429.45
  5. Step 5: Solve for x
    x = 25,871,469,429.45/185,792.29
  6. Step 6: Final answer
    x = 139,249.43

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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.