Finding the Fourth Proportional to 157,685.50, 217,605.99 and 101,173.42
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Solution
The fourth proportional to 157,685.50, 217,605.99 and 101,173.42 is: 139,619.32
Step by Step Solution
- Step 1: Write the proportion equation
157,685.50 : 217,605.99 = 101,173.42 : x - Step 2: Convert to fraction form
157,685.50/217,605.99 = 101,173.42/x - Step 3: Cross multiply
157,685.50x = 217,605.99 × 101,173.42 - Step 4: Simplify right side
157,685.50x = 22,015,942,220.79 - Step 5: Solve for x
x = 22,015,942,220.79/157,685.50 - Step 6: Final answer
x = 139,619.32
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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.