Home / 201,881.45-278,592.66-111,245.69

Finding the Fourth Proportional to 201,881.45, 278,592.66 and 111,245.69

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Solution

The fourth proportional to 201,881.45, 278,592.66 and 111,245.69 is: 153,516.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,881.45 : 278,592.66 = 111,245.69 : x
  2. Step 2: Convert to fraction form
    201,881.45/278,592.66 = 111,245.69/x
  3. Step 3: Cross multiply
    201,881.45x = 278,592.66 × 111,245.69
  4. Step 4: Simplify right side
    201,881.45x = 30,992,232,690.64
  5. Step 5: Solve for x
    x = 30,992,232,690.64/201,881.45
  6. Step 6: Final answer
    x = 153,516.99

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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.