Finding the Fourth Proportional to 125,230.40, 172,817.04 and 68,640.80
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Solution
The fourth proportional to 125,230.40, 172,817.04 and 68,640.80 is: 94,723.80
Step by Step Solution
- Step 1: Write the proportion equation
125,230.40 : 172,817.04 = 68,640.80 : x - Step 2: Convert to fraction form
125,230.40/172,817.04 = 68,640.80/x - Step 3: Cross multiply
125,230.40x = 172,817.04 × 68,640.80 - Step 4: Simplify right side
125,230.40x = 11,862,299,879.23 - Step 5: Solve for x
x = 11,862,299,879.23/125,230.40 - Step 6: Final answer
x = 94,723.80
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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.