Finding the Fourth Proportional to 125,168.68, 172,730.10 and 68,578.84
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Solution
The fourth proportional to 125,168.68, 172,730.10 and 68,578.84 is: 94,637.33
Step by Step Solution
- Step 1: Write the proportion equation
125,168.68 : 172,730.10 = 68,578.84 : x - Step 2: Convert to fraction form
125,168.68/172,730.10 = 68,578.84/x - Step 3: Cross multiply
125,168.68x = 172,730.10 × 68,578.84 - Step 4: Simplify right side
125,168.68x = 11,845,629,891.08 - Step 5: Solve for x
x = 11,845,629,891.08/125,168.68 - Step 6: Final answer
x = 94,637.33
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1.5x scale
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.