Finding the Fourth Proportional to 125,056.64, 172,578.56 and 68,471.68
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Solution
The fourth proportional to 125,056.64, 172,578.56 and 68,471.68 is: 94,491.14
Step by Step Solution
- Step 1: Write the proportion equation
125,056.64 : 172,578.56 = 68,471.68 : x - Step 2: Convert to fraction form
125,056.64/172,578.56 = 68,471.68/x - Step 3: Cross multiply
125,056.64x = 172,578.56 × 68,471.68 - Step 4: Simplify right side
125,056.64x = 11,816,743,935.18 - Step 5: Solve for x
x = 11,816,743,935.18/125,056.64 - Step 6: Final answer
x = 94,491.14
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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.