Home / 201,719.78-278,362.27-111,058.53

Finding the Fourth Proportional to 201,719.78, 278,362.27 and 111,058.53

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Solution

The fourth proportional to 201,719.78, 278,362.27 and 111,058.53 is: 153,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,719.78 : 278,362.27 = 111,058.53 : x
  2. Step 2: Convert to fraction form
    201,719.78/278,362.27 = 111,058.53/x
  3. Step 3: Cross multiply
    201,719.78x = 278,362.27 × 111,058.53
  4. Step 4: Simplify right side
    201,719.78x = 30,914,503,121.85
  5. Step 5: Solve for x
    x = 30,914,503,121.85/201,719.78
  6. Step 6: Final answer
    x = 153,254.69

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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.