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Finding the Fourth Proportional to 123,167.44, 169,941.75 and 74,768.21

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Solution

The fourth proportional to 123,167.44, 169,941.75 and 74,768.21 is: 103,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,167.44 : 169,941.75 = 74,768.21 : x
  2. Step 2: Convert to fraction form
    123,167.44/169,941.75 = 74,768.21/x
  3. Step 3: Cross multiply
    123,167.44x = 169,941.75 × 74,768.21
  4. Step 4: Simplify right side
    123,167.44x = 12,706,240,914.88
  5. Step 5: Solve for x
    x = 12,706,240,914.88/123,167.44
  6. Step 6: Final answer
    x = 103,162.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.