Home / 201,121.14-277,539.57-111,702.90

Finding the Fourth Proportional to 201,121.14, 277,539.57 and 111,702.90

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Solution

The fourth proportional to 201,121.14, 277,539.57 and 111,702.90 is: 154,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,121.14 : 277,539.57 = 111,702.90 : x
  2. Step 2: Convert to fraction form
    201,121.14/277,539.57 = 111,702.90/x
  3. Step 3: Cross multiply
    201,121.14x = 277,539.57 × 111,702.90
  4. Step 4: Simplify right side
    201,121.14x = 31,001,974,833.75
  5. Step 5: Solve for x
    x = 31,001,974,833.75/201,121.14
  6. Step 6: Final answer
    x = 154,145.78

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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.