Home / 185,669.13-256,223.16-100,786.17

Finding the Fourth Proportional to 185,669.13, 256,223.16 and 100,786.17

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Solution

The fourth proportional to 185,669.13, 256,223.16 and 100,786.17 is: 139,084.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,669.13 : 256,223.16 = 100,786.17 : x
  2. Step 2: Convert to fraction form
    185,669.13/256,223.16 = 100,786.17/x
  3. Step 3: Cross multiply
    185,669.13x = 256,223.16 × 100,786.17
  4. Step 4: Simplify right side
    185,669.13x = 25,823,750,961.70
  5. Step 5: Solve for x
    x = 25,823,750,961.70/185,669.13
  6. Step 6: Final answer
    x = 139,084.78

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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.