Home / 201,719.90-278,362.44-111,058.65

Finding the Fourth Proportional to 201,719.90, 278,362.44 and 111,058.65

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Solution

The fourth proportional to 201,719.90, 278,362.44 and 111,058.65 is: 153,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,719.90 : 278,362.44 = 111,058.65 : x
  2. Step 2: Convert to fraction form
    201,719.90/278,362.44 = 111,058.65/x
  3. Step 3: Cross multiply
    201,719.90x = 278,362.44 × 111,058.65
  4. Step 4: Simplify right side
    201,719.90x = 30,914,556,797.11
  5. Step 5: Solve for x
    x = 30,914,556,797.11/201,719.90
  6. Step 6: Final answer
    x = 153,254.87

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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.