Home / 201,968.94-278,719.01-111,328.39

Finding the Fourth Proportional to 201,968.94, 278,719.01 and 111,328.39

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Solution

The fourth proportional to 201,968.94, 278,719.01 and 111,328.39 is: 153,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,968.94 : 278,719.01 = 111,328.39 : x
  2. Step 2: Convert to fraction form
    201,968.94/278,719.01 = 111,328.39/x
  3. Step 3: Cross multiply
    201,968.94x = 278,719.01 × 111,328.39
  4. Step 4: Simplify right side
    201,968.94x = 31,029,338,854.93
  5. Step 5: Solve for x
    x = 31,029,338,854.93/201,968.94
  6. Step 6: Final answer
    x = 153,634.21

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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.