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Finding the Fourth Proportional to 117,162.36, 161,684.21 and 63,447.46

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Solution

The fourth proportional to 117,162.36, 161,684.21 and 63,447.46 is: 87,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,162.36 : 161,684.21 = 63,447.46 : x
  2. Step 2: Convert to fraction form
    117,162.36/161,684.21 = 63,447.46/x
  3. Step 3: Cross multiply
    117,162.36x = 161,684.21 × 63,447.46
  4. Step 4: Simplify right side
    117,162.36x = 10,258,452,446.61
  5. Step 5: Solve for x
    x = 10,258,452,446.61/117,162.36
  6. Step 6: Final answer
    x = 87,557.58

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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.