Finding the Fourth Proportional to 115,723.64, 173,305.14 and 80,085.09
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Solution
The fourth proportional to 115,723.64, 173,305.14 and 80,085.09 is: 119,933.65
Step by Step Solution
- Step 1: Write the proportion equation
115,723.64 : 173,305.14 = 80,085.09 : x - Step 2: Convert to fraction form
115,723.64/173,305.14 = 80,085.09/x - Step 3: Cross multiply
115,723.64x = 173,305.14 × 80,085.09 - Step 4: Simplify right side
115,723.64x = 13,879,157,734.36 - Step 5: Solve for x
x = 13,879,157,734.36/115,723.64 - Step 6: Final answer
x = 119,933.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.