Finding the Fourth Proportional to 157,245.36, 216,998.66 and 85,625.35
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Solution
The fourth proportional to 157,245.36, 216,998.66 and 85,625.35 is: 118,163.02
Step by Step Solution
- Step 1: Write the proportion equation
157,245.36 : 216,998.66 = 85,625.35 : x - Step 2: Convert to fraction form
157,245.36/216,998.66 = 85,625.35/x - Step 3: Cross multiply
157,245.36x = 216,998.66 × 85,625.35 - Step 4: Simplify right side
157,245.36x = 18,580,586,212.03 - Step 5: Solve for x
x = 18,580,586,212.03/157,245.36 - Step 6: Final answer
x = 118,163.02
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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.