Finding the Fourth Proportional to 149,896.77, 206,857.11 and 81,914.17
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Solution
The fourth proportional to 149,896.77, 206,857.11 and 81,914.17 is: 113,041.32
Step by Step Solution
- Step 1: Write the proportion equation
149,896.77 : 206,857.11 = 81,914.17 : x - Step 2: Convert to fraction form
149,896.77/206,857.11 = 81,914.17/x - Step 3: Cross multiply
149,896.77x = 206,857.11 × 81,914.17 - Step 4: Simplify right side
149,896.77x = 16,944,528,474.25 - Step 5: Solve for x
x = 16,944,528,474.25/149,896.77 - Step 6: Final answer
x = 113,041.32
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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.