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Finding the Fourth Proportional to 117,684.68, 162,405.15 and 63,969.62

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Solution

The fourth proportional to 117,684.68, 162,405.15 and 63,969.62 is: 88,278.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,684.68 : 162,405.15 = 63,969.62 : x
  2. Step 2: Convert to fraction form
    117,684.68/162,405.15 = 63,969.62/x
  3. Step 3: Cross multiply
    117,684.68x = 162,405.15 × 63,969.62
  4. Step 4: Simplify right side
    117,684.68x = 10,388,995,731.54
  5. Step 5: Solve for x
    x = 10,388,995,731.54/117,684.68
  6. Step 6: Final answer
    x = 88,278.23

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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.