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Finding the Fourth Proportional to 117,684.73, 162,405.51 and 63,969.75

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Solution

The fourth proportional to 117,684.73, 162,405.51 and 63,969.75 is: 88,278.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.73 : 162,405.51 = 63,969.75 : x
  2. Step 2: Convert to fraction form
    117,684.73/162,405.51 = 63,969.75/x
  3. Step 3: Cross multiply
    117,684.73x = 162,405.51 × 63,969.75
  4. Step 4: Simplify right side
    117,684.73x = 10,389,039,835.84
  5. Step 5: Solve for x
    x = 10,389,039,835.84/117,684.73
  6. Step 6: Final answer
    x = 88,278.57

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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.