Home / 201,899.43-278,633.57-111,255.41

Finding the Fourth Proportional to 201,899.43, 278,633.57 and 111,255.41

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Solution

The fourth proportional to 201,899.43, 278,633.57 and 111,255.41 is: 153,539.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,899.43 : 278,633.57 = 111,255.41 : x
  2. Step 2: Convert to fraction form
    201,899.43/278,633.57 = 111,255.41/x
  3. Step 3: Cross multiply
    201,899.43x = 278,633.57 × 111,255.41
  4. Step 4: Simplify right side
    201,899.43x = 30,999,492,210.42
  5. Step 5: Solve for x
    x = 30,999,492,210.42/201,899.43
  6. Step 6: Final answer
    x = 153,539.28

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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.