Finding the Fourth Proportional to 154,869.18, 213,640.68 and 101,185.62
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Solution
The fourth proportional to 154,869.18, 213,640.68 and 101,185.62 is: 139,584.68
Step by Step Solution
- Step 1: Write the proportion equation
154,869.18 : 213,640.68 = 101,185.62 : x - Step 2: Convert to fraction form
154,869.18/213,640.68 = 101,185.62/x - Step 3: Cross multiply
154,869.18x = 213,640.68 × 101,185.62 - Step 4: Simplify right side
154,869.18x = 21,617,364,663.02 - Step 5: Solve for x
x = 21,617,364,663.02/154,869.18 - Step 6: Final answer
x = 139,584.68
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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.