Home / 111,535.14-153,895.23-66,206.73

Finding the Fourth Proportional to 111,535.14, 153,895.23 and 66,206.73

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Solution

The fourth proportional to 111,535.14, 153,895.23 and 66,206.73 is: 91,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,535.14 : 153,895.23 = 66,206.73 : x
  2. Step 2: Convert to fraction form
    111,535.14/153,895.23 = 66,206.73/x
  3. Step 3: Cross multiply
    111,535.14x = 153,895.23 × 66,206.73
  4. Step 4: Simplify right side
    111,535.14x = 10,188,899,940.90
  5. Step 5: Solve for x
    x = 10,188,899,940.90/111,535.14
  6. Step 6: Final answer
    x = 91,351.48

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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.