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Finding the Fourth Proportional to 116,990.66, 161,447.13 and 66,014.19

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Solution

The fourth proportional to 116,990.66, 161,447.13 and 66,014.19 is: 91,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,990.66 : 161,447.13 = 66,014.19 : x
  2. Step 2: Convert to fraction form
    116,990.66/161,447.13 = 66,014.19/x
  3. Step 3: Cross multiply
    116,990.66x = 161,447.13 × 66,014.19
  4. Step 4: Simplify right side
    116,990.66x = 10,657,801,514.77
  5. Step 5: Solve for x
    x = 10,657,801,514.77/116,990.66
  6. Step 6: Final answer
    x = 91,099.60

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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.