Home / 201,923.67-278,656.55-111,282.95

Finding the Fourth Proportional to 201,923.67, 278,656.55 and 111,282.95

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Solution

The fourth proportional to 201,923.67, 278,656.55 and 111,282.95 is: 153,571.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,923.67 : 278,656.55 = 111,282.95 : x
  2. Step 2: Convert to fraction form
    201,923.67/278,656.55 = 111,282.95/x
  3. Step 3: Cross multiply
    201,923.67x = 278,656.55 × 111,282.95
  4. Step 4: Simplify right side
    201,923.67x = 31,009,722,920.82
  5. Step 5: Solve for x
    x = 31,009,722,920.82/201,923.67
  6. Step 6: Final answer
    x = 153,571.51

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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.