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Finding the Fourth Proportional to 117,941.05, 162,813.81 and 75,523.78

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Solution

The fourth proportional to 117,941.05, 162,813.81 and 75,523.78 is: 104,258.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,941.05 : 162,813.81 = 75,523.78 : x
  2. Step 2: Convert to fraction form
    117,941.05/162,813.81 = 75,523.78/x
  3. Step 3: Cross multiply
    117,941.05x = 162,813.81 × 75,523.78
  4. Step 4: Simplify right side
    117,941.05x = 12,296,314,367.40
  5. Step 5: Solve for x
    x = 12,296,314,367.40/117,941.05
  6. Step 6: Final answer
    x = 104,258.14

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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.