Finding the Fourth Proportional to 122,639.39, 182,857.67 and 117,956.99
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Solution
The fourth proportional to 122,639.39, 182,857.67 and 117,956.99 is: 175,876.12
Step by Step Solution
- Step 1: Write the proportion equation
122,639.39 : 182,857.67 = 117,956.99 : x - Step 2: Convert to fraction form
122,639.39/182,857.67 = 117,956.99/x - Step 3: Cross multiply
122,639.39x = 182,857.67 × 117,956.99 - Step 4: Simplify right side
122,639.39x = 21,569,340,351.61 - Step 5: Solve for x
x = 21,569,340,351.61/122,639.39 - Step 6: Final answer
x = 175,876.12
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.