Home / 190,621.44-285,839.04-57,476.64

Finding the Fourth Proportional to 190,621.44, 285,839.04 and 57,476.64

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Solution

The fourth proportional to 190,621.44, 285,839.04 and 57,476.64 is: 86,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,621.44 : 285,839.04 = 57,476.64 : x
  2. Step 2: Convert to fraction form
    190,621.44/285,839.04 = 57,476.64/x
  3. Step 3: Cross multiply
    190,621.44x = 285,839.04 × 57,476.64
  4. Step 4: Simplify right side
    190,621.44x = 16,429,067,600.03
  5. Step 5: Solve for x
    x = 16,429,067,600.03/190,621.44
  6. Step 6: Final answer
    x = 86,186.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.