Finding the Fourth Proportional to 149,741.49, 206,643.68 and 81,759.05
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Solution
The fourth proportional to 149,741.49, 206,643.68 and 81,759.05 is: 112,827.72
Step by Step Solution
- Step 1: Write the proportion equation
149,741.49 : 206,643.68 = 81,759.05 : x - Step 2: Convert to fraction form
149,741.49/206,643.68 = 81,759.05/x - Step 3: Cross multiply
149,741.49x = 206,643.68 × 81,759.05 - Step 4: Simplify right side
149,741.49x = 16,894,990,965.30 - Step 5: Solve for x
x = 16,894,990,965.30/149,741.49 - Step 6: Final answer
x = 112,827.72
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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.