Finding the Fourth Proportional to 115,739.75, 159,725.39 and 67,992.68
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Solution
The fourth proportional to 115,739.75, 159,725.39 and 67,992.68 is: 93,832.56
Step by Step Solution
- Step 1: Write the proportion equation
115,739.75 : 159,725.39 = 67,992.68 : x - Step 2: Convert to fraction form
115,739.75/159,725.39 = 67,992.68/x - Step 3: Cross multiply
115,739.75x = 159,725.39 × 67,992.68 - Step 4: Simplify right side
115,739.75x = 10,860,157,330.15 - Step 5: Solve for x
x = 10,860,157,330.15/115,739.75 - Step 6: Final answer
x = 93,832.56
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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.