Finding the Fourth Proportional to 103,614.70, 155,486.05 and 41,278.70
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Solution
The fourth proportional to 103,614.70, 155,486.05 and 41,278.70 is: 61,943.55
Step by Step Solution
- Step 1: Write the proportion equation
103,614.70 : 155,486.05 = 41,278.70 : x - Step 2: Convert to fraction form
103,614.70/155,486.05 = 41,278.70/x - Step 3: Cross multiply
103,614.70x = 155,486.05 × 41,278.70 - Step 4: Simplify right side
103,614.70x = 6,418,262,012.14 - Step 5: Solve for x
x = 6,418,262,012.14/103,614.70 - Step 6: Final answer
x = 61,943.55
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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.