Home / 185,795.64-256,396.86-100,911.96

Finding the Fourth Proportional to 185,795.64, 256,396.86 and 100,911.96

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Solution

The fourth proportional to 185,795.64, 256,396.86 and 100,911.96 is: 139,257.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,795.64 : 256,396.86 = 100,911.96 : x
  2. Step 2: Convert to fraction form
    185,795.64/256,396.86 = 100,911.96/x
  3. Step 3: Cross multiply
    185,795.64x = 256,396.86 × 100,911.96
  4. Step 4: Simplify right side
    185,795.64x = 25,873,509,680.45
  5. Step 5: Solve for x
    x = 25,873,509,680.45/185,795.64
  6. Step 6: Final answer
    x = 139,257.89

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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.