Home / 201,880.43-278,607.63-111,236.36

Finding the Fourth Proportional to 201,880.43, 278,607.63 and 111,236.36

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Solution

The fourth proportional to 201,880.43, 278,607.63 and 111,236.36 is: 153,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,880.43 : 278,607.63 = 111,236.36 : x
  2. Step 2: Convert to fraction form
    201,880.43/278,607.63 = 111,236.36/x
  3. Step 3: Cross multiply
    201,880.43x = 278,607.63 × 111,236.36
  4. Step 4: Simplify right side
    201,880.43x = 30,991,298,629.43
  5. Step 5: Solve for x
    x = 30,991,298,629.43/201,880.43
  6. Step 6: Final answer
    x = 153,513.14

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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.