Finding the Fourth Proportional to 115,400.26, 173,173.29 and 45,278.02
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Solution
The fourth proportional to 115,400.26, 173,173.29 and 45,278.02 is: 67,945.63
Step by Step Solution
- Step 1: Write the proportion equation
115,400.26 : 173,173.29 = 45,278.02 : x - Step 2: Convert to fraction form
115,400.26/173,173.29 = 45,278.02/x - Step 3: Cross multiply
115,400.26x = 173,173.29 × 45,278.02 - Step 4: Simplify right side
115,400.26x = 7,840,943,688.09 - Step 5: Solve for x
x = 7,840,943,688.09/115,400.26 - Step 6: Final answer
x = 67,945.63
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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.