Finding the Fourth Proportional to 122,183.80, 183,218.17 and 47,338.99
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Solution
The fourth proportional to 122,183.80, 183,218.17 and 47,338.99 is: 70,986.20
Step by Step Solution
- Step 1: Write the proportion equation
122,183.80 : 183,218.17 = 47,338.99 : x - Step 2: Convert to fraction form
122,183.80/183,218.17 = 47,338.99/x - Step 3: Cross multiply
122,183.80x = 183,218.17 × 47,338.99 - Step 4: Simplify right side
122,183.80x = 8,673,363,117.45 - Step 5: Solve for x
x = 8,673,363,117.45/122,183.80 - Step 6: Final answer
x = 70,986.20
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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.