Home / 117,738.79-162,474.58-66,754.95

Finding the Fourth Proportional to 117,738.79, 162,474.58 and 66,754.95

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Solution

The fourth proportional to 117,738.79, 162,474.58 and 66,754.95 is: 92,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,738.79 : 162,474.58 = 66,754.95 : x
  2. Step 2: Convert to fraction form
    117,738.79/162,474.58 = 66,754.95/x
  3. Step 3: Cross multiply
    117,738.79x = 162,474.58 × 66,754.95
  4. Step 4: Simplify right side
    117,738.79x = 10,845,982,464.17
  5. Step 5: Solve for x
    x = 10,845,982,464.17/117,738.79
  6. Step 6: Final answer
    x = 92,119.02

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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.