Home / 190,621.20-263,088.74-105,765.60

Finding the Fourth Proportional to 190,621.20, 263,088.74 and 105,765.60

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Solution

The fourth proportional to 190,621.20, 263,088.74 and 105,765.60 is: 145,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,621.20 : 263,088.74 = 105,765.60 : x
  2. Step 2: Convert to fraction form
    190,621.20/263,088.74 = 105,765.60/x
  3. Step 3: Cross multiply
    190,621.20x = 263,088.74 × 105,765.60
  4. Step 4: Simplify right side
    190,621.20x = 27,825,738,439.34
  5. Step 5: Solve for x
    x = 27,825,738,439.34/190,621.20
  6. Step 6: Final answer
    x = 145,974.00

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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.