Finding the Fourth Proportional to 125,305.05, 172,913.74 and 68,716.42
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Solution
The fourth proportional to 125,305.05, 172,913.74 and 68,716.42 is: 94,824.70
Step by Step Solution
- Step 1: Write the proportion equation
125,305.05 : 172,913.74 = 68,716.42 : x - Step 2: Convert to fraction form
125,305.05/172,913.74 = 68,716.42/x - Step 3: Cross multiply
125,305.05x = 172,913.74 × 68,716.42 - Step 4: Simplify right side
125,305.05x = 11,882,013,181.61 - Step 5: Solve for x
x = 11,882,013,181.61/125,305.05 - Step 6: Final answer
x = 94,824.70
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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.