Home / 201,712.28-278,360.69-111,066.39

Finding the Fourth Proportional to 201,712.28, 278,360.69 and 111,066.39

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Solution

The fourth proportional to 201,712.28, 278,360.69 and 111,066.39 is: 153,270.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,712.28 : 278,360.69 = 111,066.39 : x
  2. Step 2: Convert to fraction form
    201,712.28/278,360.69 = 111,066.39/x
  3. Step 3: Cross multiply
    201,712.28x = 278,360.69 × 111,066.39
  4. Step 4: Simplify right side
    201,712.28x = 30,916,516,400.88
  5. Step 5: Solve for x
    x = 30,916,516,400.88/201,712.28
  6. Step 6: Final answer
    x = 153,270.38

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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.