Home / 201,872.08-278,605.26-111,237.16

Finding the Fourth Proportional to 201,872.08, 278,605.26 and 111,237.16

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Solution

The fourth proportional to 201,872.08, 278,605.26 and 111,237.16 is: 153,519.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,872.08 : 278,605.26 = 111,237.16 : x
  2. Step 2: Convert to fraction form
    201,872.08/278,605.26 = 111,237.16/x
  3. Step 3: Cross multiply
    201,872.08x = 278,605.26 × 111,237.16
  4. Step 4: Simplify right side
    201,872.08x = 30,991,257,883.46
  5. Step 5: Solve for x
    x = 30,991,257,883.46/201,872.08
  6. Step 6: Final answer
    x = 153,519.29

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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.