Home / 190,664.64-263,105.76-105,776.64

Finding the Fourth Proportional to 190,664.64, 263,105.76 and 105,776.64

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Solution

The fourth proportional to 190,664.64, 263,105.76 and 105,776.64 is: 145,965.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,664.64 : 263,105.76 = 105,776.64 : x
  2. Step 2: Convert to fraction form
    190,664.64/263,105.76 = 105,776.64/x
  3. Step 3: Cross multiply
    190,664.64x = 263,105.76 × 105,776.64
  4. Step 4: Simplify right side
    190,664.64x = 27,830,443,257.45
  5. Step 5: Solve for x
    x = 27,830,443,257.45/190,664.64
  6. Step 6: Final answer
    x = 145,965.41

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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.