Finding the Fourth Proportional to 149,517.63, 206,339.29 and 81,538.31
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Solution
The fourth proportional to 149,517.63, 206,339.29 and 81,538.31 is: 112,525.57
Step by Step Solution
- Step 1: Write the proportion equation
149,517.63 : 206,339.29 = 81,538.31 : x - Step 2: Convert to fraction form
149,517.63/206,339.29 = 81,538.31/x - Step 3: Cross multiply
149,517.63x = 206,339.29 × 81,538.31 - Step 4: Simplify right side
149,517.63x = 16,824,556,993.20 - Step 5: Solve for x
x = 16,824,556,993.20/149,517.63 - Step 6: Final answer
x = 112,525.57
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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.