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Finding the Fourth Proportional to 117,205.75, 161,734.38 and 68,802.50

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Solution

The fourth proportional to 117,205.75, 161,734.38 and 68,802.50 is: 94,941.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,205.75 : 161,734.38 = 68,802.50 : x
  2. Step 2: Convert to fraction form
    117,205.75/161,734.38 = 68,802.50/x
  3. Step 3: Cross multiply
    117,205.75x = 161,734.38 × 68,802.50
  4. Step 4: Simplify right side
    117,205.75x = 11,127,729,679.95
  5. Step 5: Solve for x
    x = 11,127,729,679.95/117,205.75
  6. Step 6: Final answer
    x = 94,941.84

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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.