Home / 200,621.11-300,971.03-74,262.46

Finding the Fourth Proportional to 200,621.11, 300,971.03 and 74,262.46

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Solution

The fourth proportional to 200,621.11, 300,971.03 and 74,262.46 is: 111,408.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,621.11 : 300,971.03 = 74,262.46 : x
  2. Step 2: Convert to fraction form
    200,621.11/300,971.03 = 74,262.46/x
  3. Step 3: Cross multiply
    200,621.11x = 300,971.03 × 74,262.46
  4. Step 4: Simplify right side
    200,621.11x = 22,350,849,076.53
  5. Step 5: Solve for x
    x = 22,350,849,076.53/200,621.11
  6. Step 6: Final answer
    x = 111,408.26

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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.