Finding the Fourth Proportional to 122,158.08, 168,629.76 and 79,752.96
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Solution
The fourth proportional to 122,158.08, 168,629.76 and 79,752.96 is: 110,092.78
Step by Step Solution
- Step 1: Write the proportion equation
122,158.08 : 168,629.76 = 79,752.96 : x - Step 2: Convert to fraction form
122,158.08/168,629.76 = 79,752.96/x - Step 3: Cross multiply
122,158.08x = 168,629.76 × 79,752.96 - Step 4: Simplify right side
122,158.08x = 13,448,722,504.09 - Step 5: Solve for x
x = 13,448,722,504.09/122,158.08 - Step 6: Final answer
x = 110,092.78
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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.