Home / 201,820.26-278,533.84-111,185.52

Finding the Fourth Proportional to 201,820.26, 278,533.84 and 111,185.52

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Solution

The fourth proportional to 201,820.26, 278,533.84 and 111,185.52 is: 153,448.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,820.26 : 278,533.84 = 111,185.52 : x
  2. Step 2: Convert to fraction form
    201,820.26/278,533.84 = 111,185.52/x
  3. Step 3: Cross multiply
    201,820.26x = 278,533.84 × 111,185.52
  4. Step 4: Simplify right side
    201,820.26x = 30,968,929,838.00
  5. Step 5: Solve for x
    x = 30,968,929,838.00/201,820.26
  6. Step 6: Final answer
    x = 153,448.07

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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.