Home / 201,982.45-278,724.94-111,320.37

Finding the Fourth Proportional to 201,982.45, 278,724.94 and 111,320.37

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Solution

The fourth proportional to 201,982.45, 278,724.94 and 111,320.37 is: 153,616.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,982.45 : 278,724.94 = 111,320.37 : x
  2. Step 2: Convert to fraction form
    201,982.45/278,724.94 = 111,320.37/x
  3. Step 3: Cross multiply
    201,982.45x = 278,724.94 × 111,320.37
  4. Step 4: Simplify right side
    201,982.45x = 31,027,763,449.03
  5. Step 5: Solve for x
    x = 31,027,763,449.03/201,982.45
  6. Step 6: Final answer
    x = 153,616.14

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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.