Home / 185,774.22-256,371.39-100,891.28

Finding the Fourth Proportional to 185,774.22, 256,371.39 and 100,891.28

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Solution

The fourth proportional to 185,774.22, 256,371.39 and 100,891.28 is: 139,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,774.22 : 256,371.39 = 100,891.28 : x
  2. Step 2: Convert to fraction form
    185,774.22/256,371.39 = 100,891.28/x
  3. Step 3: Cross multiply
    185,774.22x = 256,371.39 × 100,891.28
  4. Step 4: Simplify right side
    185,774.22x = 25,865,636,410.62
  5. Step 5: Solve for x
    x = 25,865,636,410.62/185,774.22
  6. Step 6: Final answer
    x = 139,231.57

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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.