Finding the Fourth Proportional to 68,197.66, 102,296.49 and 20,812.99
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Solution
The fourth proportional to 68,197.66, 102,296.49 and 20,812.99 is: 31,219.49
Step by Step Solution
- Step 1: Write the proportion equation
68,197.66 : 102,296.49 = 20,812.99 : x - Step 2: Convert to fraction form
68,197.66/102,296.49 = 20,812.99/x - Step 3: Cross multiply
68,197.66x = 102,296.49 × 20,812.99 - Step 4: Simplify right side
68,197.66x = 2,129,095,719.34 - Step 5: Solve for x
x = 2,129,095,719.34/68,197.66 - Step 6: Final answer
x = 31,219.49
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1.5x scale
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.