Home / 190,519.20-262,903.68-105,633.12

Finding the Fourth Proportional to 190,519.20, 262,903.68 and 105,633.12

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Solution

The fourth proportional to 190,519.20, 262,903.68 and 105,633.12 is: 145,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,519.20 : 262,903.68 = 105,633.12 : x
  2. Step 2: Convert to fraction form
    190,519.20/262,903.68 = 105,633.12/x
  3. Step 3: Cross multiply
    190,519.20x = 262,903.68 × 105,633.12
  4. Step 4: Simplify right side
    190,519.20x = 27,771,335,977.88
  5. Step 5: Solve for x
    x = 27,771,335,977.88/190,519.20
  6. Step 6: Final answer
    x = 145,766.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.