Finding the Fourth Proportional to 122,861.91, 169,601.74 and 82,599.02
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Solution
The fourth proportional to 122,861.91, 169,601.74 and 82,599.02 is: 114,021.81
Step by Step Solution
- Step 1: Write the proportion equation
122,861.91 : 169,601.74 = 82,599.02 : x - Step 2: Convert to fraction form
122,861.91/169,601.74 = 82,599.02/x - Step 3: Cross multiply
122,861.91x = 169,601.74 × 82,599.02 - Step 4: Simplify right side
122,861.91x = 14,008,937,405.54 - Step 5: Solve for x
x = 14,008,937,405.54/122,861.91 - Step 6: Final answer
x = 114,021.81
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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.