Home / 161,172.73-222,346.83-107,405.38

Finding the Fourth Proportional to 161,172.73, 222,346.83 and 107,405.38

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Solution

The fourth proportional to 161,172.73, 222,346.83 and 107,405.38 is: 148,171.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,172.73 : 222,346.83 = 107,405.38 : x
  2. Step 2: Convert to fraction form
    161,172.73/222,346.83 = 107,405.38/x
  3. Step 3: Cross multiply
    161,172.73x = 222,346.83 × 107,405.38
  4. Step 4: Simplify right side
    161,172.73x = 23,881,245,767.95
  5. Step 5: Solve for x
    x = 23,881,245,767.95/161,172.73
  6. Step 6: Final answer
    x = 148,171.75

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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.