Finding the Fourth Proportional to 113,616.96, 157,074.84 and 85,273.44
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Solution
The fourth proportional to 113,616.96, 157,074.84 and 85,273.44 is: 117,890.08
Step by Step Solution
- Step 1: Write the proportion equation
113,616.96 : 157,074.84 = 85,273.44 : x - Step 2: Convert to fraction form
113,616.96/157,074.84 = 85,273.44/x - Step 3: Cross multiply
113,616.96x = 157,074.84 × 85,273.44 - Step 4: Simplify right side
113,616.96x = 13,394,311,944.25 - Step 5: Solve for x
x = 13,394,311,944.25/113,616.96 - Step 6: Final answer
x = 117,890.08
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1.5x scale
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.