Home / 111,836.97-154,284.16-66,489.22

Finding the Fourth Proportional to 111,836.97, 154,284.16 and 66,489.22

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Solution

The fourth proportional to 111,836.97, 154,284.16 and 66,489.22 is: 91,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,836.97 : 154,284.16 = 66,489.22 : x
  2. Step 2: Convert to fraction form
    111,836.97/154,284.16 = 66,489.22/x
  3. Step 3: Cross multiply
    111,836.97x = 154,284.16 × 66,489.22
  4. Step 4: Simplify right side
    111,836.97x = 10,258,233,732.72
  5. Step 5: Solve for x
    x = 10,258,233,732.72/111,836.97
  6. Step 6: Final answer
    x = 91,724.89

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1.5x scale

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.