Finding the Fourth Proportional to 125,305.14, 172,925.10 and 68,716.38
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Solution
The fourth proportional to 125,305.14, 172,925.10 and 68,716.38 is: 94,830.80
Step by Step Solution
- Step 1: Write the proportion equation
125,305.14 : 172,925.10 = 68,716.38 : x - Step 2: Convert to fraction form
125,305.14/172,925.10 = 68,716.38/x - Step 3: Cross multiply
125,305.14x = 172,925.10 × 68,716.38 - Step 4: Simplify right side
125,305.14x = 11,882,786,883.14 - Step 5: Solve for x
x = 11,882,786,883.14/125,305.14 - Step 6: Final answer
x = 94,830.80
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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.