Home / 117,921.39-176,850.90-80,474.73

Finding the Fourth Proportional to 117,921.39, 176,850.90 and 80,474.73

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Solution

The fourth proportional to 117,921.39, 176,850.90 and 80,474.73 is: 120,690.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,921.39 : 176,850.90 = 80,474.73 : x
  2. Step 2: Convert to fraction form
    117,921.39/176,850.90 = 80,474.73/x
  3. Step 3: Cross multiply
    117,921.39x = 176,850.90 × 80,474.73
  4. Step 4: Simplify right side
    117,921.39x = 14,232,028,427.76
  5. Step 5: Solve for x
    x = 14,232,028,427.76/117,921.39
  6. Step 6: Final answer
    x = 120,690.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.