Finding the Fourth Proportional to 103,082.15, 154,515.33 and 43,144.99
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Solution
The fourth proportional to 103,082.15, 154,515.33 and 43,144.99 is: 64,672.32
Step by Step Solution
- Step 1: Write the proportion equation
103,082.15 : 154,515.33 = 43,144.99 : x - Step 2: Convert to fraction form
103,082.15/154,515.33 = 43,144.99/x - Step 3: Cross multiply
103,082.15x = 154,515.33 × 43,144.99 - Step 4: Simplify right side
103,082.15x = 6,666,561,981.41 - Step 5: Solve for x
x = 6,666,561,981.41/103,082.15 - Step 6: Final answer
x = 64,672.32
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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.