Home / 201,935.88-278,670.60-111,291.65

Finding the Fourth Proportional to 201,935.88, 278,670.60 and 111,291.65

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Solution

The fourth proportional to 201,935.88, 278,670.60 and 111,291.65 is: 153,581.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,935.88 : 278,670.60 = 111,291.65 : x
  2. Step 2: Convert to fraction form
    201,935.88/278,670.60 = 111,291.65/x
  3. Step 3: Cross multiply
    201,935.88x = 278,670.60 × 111,291.65
  4. Step 4: Simplify right side
    201,935.88x = 31,013,709,983.77
  5. Step 5: Solve for x
    x = 31,013,709,983.77/201,935.88
  6. Step 6: Final answer
    x = 153,581.97

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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.