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Finding the Fourth Proportional to 161,067.70, 222,273.80 and 89,447.74

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Solution

The fourth proportional to 161,067.70, 222,273.80 and 89,447.74 is: 123,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,067.70 : 222,273.80 = 89,447.74 : x
  2. Step 2: Convert to fraction form
    161,067.70/222,273.80 = 89,447.74/x
  3. Step 3: Cross multiply
    161,067.70x = 222,273.80 × 89,447.74
  4. Step 4: Simplify right side
    161,067.70x = 19,881,889,071.21
  5. Step 5: Solve for x
    x = 19,881,889,071.21/161,067.70
  6. Step 6: Final answer
    x = 123,438.09

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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.