Home / 117,326.94-161,909.19-66,338.88

Finding the Fourth Proportional to 117,326.94, 161,909.19 and 66,338.88

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Solution

The fourth proportional to 117,326.94, 161,909.19 and 66,338.88 is: 91,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,326.94 : 161,909.19 = 66,338.88 : x
  2. Step 2: Convert to fraction form
    117,326.94/161,909.19 = 66,338.88/x
  3. Step 3: Cross multiply
    117,326.94x = 161,909.19 × 66,338.88
  4. Step 4: Simplify right side
    117,326.94x = 10,740,874,326.31
  5. Step 5: Solve for x
    x = 10,740,874,326.31/117,326.94
  6. Step 6: Final answer
    x = 91,546.53

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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.