Finding the Fourth Proportional to 121,230.99, 167,286.76 and 67,520.99
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Solution
The fourth proportional to 121,230.99, 167,286.76 and 67,520.99 is: 93,172.28
Step by Step Solution
- Step 1: Write the proportion equation
121,230.99 : 167,286.76 = 67,520.99 : x - Step 2: Convert to fraction form
121,230.99/167,286.76 = 67,520.99/x - Step 3: Cross multiply
121,230.99x = 167,286.76 × 67,520.99 - Step 4: Simplify right side
121,230.99x = 11,295,367,898.51 - Step 5: Solve for x
x = 11,295,367,898.51/121,230.99 - Step 6: Final answer
x = 93,172.28
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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.