Finding the Fourth Proportional to 149,896.96, 206,869.57 and 85,368.92
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Solution
The fourth proportional to 149,896.96, 206,869.57 and 85,368.92 is: 117,815.80
Step by Step Solution
- Step 1: Write the proportion equation
149,896.96 : 206,869.57 = 85,368.92 : x - Step 2: Convert to fraction form
149,896.96/206,869.57 = 85,368.92/x - Step 3: Cross multiply
149,896.96x = 206,869.57 × 85,368.92 - Step 4: Simplify right side
149,896.96x = 17,660,230,523.99 - Step 5: Solve for x
x = 17,660,230,523.99/149,896.96 - Step 6: Final answer
x = 117,815.80
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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.