Home / 201,926.34-278,660.25-111,285.57

Finding the Fourth Proportional to 201,926.34, 278,660.25 and 111,285.57

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Solution

The fourth proportional to 201,926.34, 278,660.25 and 111,285.57 is: 153,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,926.34 : 278,660.25 = 111,285.57 : x
  2. Step 2: Convert to fraction form
    201,926.34/278,660.25 = 111,285.57/x
  3. Step 3: Cross multiply
    201,926.34x = 278,660.25 × 111,285.57
  4. Step 4: Simplify right side
    201,926.34x = 31,010,864,757.59
  5. Step 5: Solve for x
    x = 31,010,864,757.59/201,926.34
  6. Step 6: Final answer
    x = 153,575.13

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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.