Home / 201,772.32-278,434.87-111,110.56

Finding the Fourth Proportional to 201,772.32, 278,434.87 and 111,110.56

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Solution

The fourth proportional to 201,772.32, 278,434.87 and 111,110.56 is: 153,326.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,772.32 : 278,434.87 = 111,110.56 : x
  2. Step 2: Convert to fraction form
    201,772.32/278,434.87 = 111,110.56/x
  3. Step 3: Cross multiply
    201,772.32x = 278,434.87 × 111,110.56
  4. Step 4: Simplify right side
    201,772.32x = 30,937,054,329.23
  5. Step 5: Solve for x
    x = 30,937,054,329.23/201,772.32
  6. Step 6: Final answer
    x = 153,326.55

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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.