Finding the Fourth Proportional to 149,429.99, 206,212.07 and 81,446.96
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Solution
The fourth proportional to 149,429.99, 206,212.07 and 81,446.96 is: 112,396.09
Step by Step Solution
- Step 1: Write the proportion equation
149,429.99 : 206,212.07 = 81,446.96 : x - Step 2: Convert to fraction form
149,429.99/206,212.07 = 81,446.96/x - Step 3: Cross multiply
149,429.99x = 206,212.07 × 81,446.96 - Step 4: Simplify right side
149,429.99x = 16,795,346,935.95 - Step 5: Solve for x
x = 16,795,346,935.95/149,429.99 - Step 6: Final answer
x = 112,396.09
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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.