Finding the Fourth Proportional to 137,623.95, 189,906.66 and 80,247.99
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Solution
The fourth proportional to 137,623.95, 189,906.66 and 80,247.99 is: 110,733.83
Step by Step Solution
- Step 1: Write the proportion equation
137,623.95 : 189,906.66 = 80,247.99 : x - Step 2: Convert to fraction form
137,623.95/189,906.66 = 80,247.99/x - Step 3: Cross multiply
137,623.95x = 189,906.66 × 80,247.99 - Step 4: Simplify right side
137,623.95x = 15,239,627,752.61 - Step 5: Solve for x
x = 15,239,627,752.61/137,623.95 - Step 6: Final answer
x = 110,733.83
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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.