Home / 201,719.76-278,379.96-111,082.44

Finding the Fourth Proportional to 201,719.76, 278,379.96 and 111,082.44

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Solution

The fourth proportional to 201,719.76, 278,379.96 and 111,082.44 is: 153,297.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,719.76 : 278,379.96 = 111,082.44 : x
  2. Step 2: Convert to fraction form
    201,719.76/278,379.96 = 111,082.44/x
  3. Step 3: Cross multiply
    201,719.76x = 278,379.96 × 111,082.44
  4. Step 4: Simplify right side
    201,719.76x = 30,923,125,203.90
  5. Step 5: Solve for x
    x = 30,923,125,203.90/201,719.76
  6. Step 6: Final answer
    x = 153,297.45

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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.