Finding the Fourth Proportional to 149,650.16, 206,517.80 and 81,668.63
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Solution
The fourth proportional to 149,650.16, 206,517.80 and 81,668.63 is: 112,703.03
Step by Step Solution
- Step 1: Write the proportion equation
149,650.16 : 206,517.80 = 81,668.63 : x - Step 2: Convert to fraction form
149,650.16/206,517.80 = 81,668.63/x - Step 3: Cross multiply
149,650.16x = 206,517.80 × 81,668.63 - Step 4: Simplify right side
149,650.16x = 16,866,026,517.08 - Step 5: Solve for x
x = 16,866,026,517.08/149,650.16 - Step 6: Final answer
x = 112,703.03
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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.