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Finding the Fourth Proportional to 123,035.34, 169,788.74 and 66,446.73

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Solution

The fourth proportional to 123,035.34, 169,788.74 and 66,446.73 is: 91,696.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,035.34 : 169,788.74 = 66,446.73 : x
  2. Step 2: Convert to fraction form
    123,035.34/169,788.74 = 66,446.73/x
  3. Step 3: Cross multiply
    123,035.34x = 169,788.74 × 66,446.73
  4. Step 4: Simplify right side
    123,035.34x = 11,281,906,231.59
  5. Step 5: Solve for x
    x = 11,281,906,231.59/123,035.34
  6. Step 6: Final answer
    x = 91,696.47

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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.