Finding the Fourth Proportional to 154,454.63, 213,174.97 and 112,136.18
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Solution
The fourth proportional to 154,454.63, 213,174.97 and 112,136.18 is: 154,767.95
Step by Step Solution
- Step 1: Write the proportion equation
154,454.63 : 213,174.97 = 112,136.18 : x - Step 2: Convert to fraction form
154,454.63/213,174.97 = 112,136.18/x - Step 3: Cross multiply
154,454.63x = 213,174.97 × 112,136.18 - Step 4: Simplify right side
154,454.63x = 23,904,625,461.20 - Step 5: Solve for x
x = 23,904,625,461.20/154,454.63 - Step 6: Final answer
x = 154,767.95
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1.5x scale
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.