Finding the Fourth Proportional to 157,516.75, 217,365.21 and 89,524.75
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Solution
The fourth proportional to 157,516.75, 217,365.21 and 89,524.75 is: 123,539.66
Step by Step Solution
- Step 1: Write the proportion equation
157,516.75 : 217,365.21 = 89,524.75 : x - Step 2: Convert to fraction form
157,516.75/217,365.21 = 89,524.75/x - Step 3: Cross multiply
157,516.75x = 217,365.21 × 89,524.75 - Step 4: Simplify right side
157,516.75x = 19,459,566,083.95 - Step 5: Solve for x
x = 19,459,566,083.95/157,516.75 - Step 6: Final answer
x = 123,539.66
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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.