Finding the Fourth Proportional to 115,787.97, 159,790.41 and 68,043.96
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Solution
The fourth proportional to 115,787.97, 159,790.41 and 68,043.96 is: 93,902.43
Step by Step Solution
- Step 1: Write the proportion equation
115,787.97 : 159,790.41 = 68,043.96 : x - Step 2: Convert to fraction form
115,787.97/159,790.41 = 68,043.96/x - Step 3: Cross multiply
115,787.97x = 159,790.41 × 68,043.96 - Step 4: Simplify right side
115,787.97x = 10,872,772,266.42 - Step 5: Solve for x
x = 10,872,772,266.42/115,787.97 - Step 6: Final answer
x = 93,902.43
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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.