Home / 111,842.47-154,291.75-66,494.73

Finding the Fourth Proportional to 111,842.47, 154,291.75 and 66,494.73

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Solution

The fourth proportional to 111,842.47, 154,291.75 and 66,494.73 is: 91,732.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,842.47 : 154,291.75 = 66,494.73 : x
  2. Step 2: Convert to fraction form
    111,842.47/154,291.75 = 66,494.73/x
  3. Step 3: Cross multiply
    111,842.47x = 154,291.75 × 66,494.73
  4. Step 4: Simplify right side
    111,842.47x = 10,259,588,257.48
  5. Step 5: Solve for x
    x = 10,259,588,257.48/111,842.47
  6. Step 6: Final answer
    x = 91,732.49

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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.