Finding the Fourth Proportional to 149,204.88, 205,896.30 and 81,221.96
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Solution
The fourth proportional to 149,204.88, 205,896.30 and 81,221.96 is: 112,082.80
Step by Step Solution
- Step 1: Write the proportion equation
149,204.88 : 205,896.30 = 81,221.96 : x - Step 2: Convert to fraction form
149,204.88/205,896.30 = 81,221.96/x - Step 3: Cross multiply
149,204.88x = 205,896.30 × 81,221.96 - Step 4: Simplify right side
149,204.88x = 16,723,301,042.75 - Step 5: Solve for x
x = 16,723,301,042.75/149,204.88 - Step 6: Final answer
x = 112,082.80
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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.