Finding the Fourth Proportional to 149,898.87, 206,717.46 and 98,138.73
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Solution
The fourth proportional to 149,898.87, 206,717.46 and 98,138.73 is: 135,337.84
Step by Step Solution
- Step 1: Write the proportion equation
149,898.87 : 206,717.46 = 98,138.73 : x - Step 2: Convert to fraction form
149,898.87/206,717.46 = 98,138.73/x - Step 3: Cross multiply
149,898.87x = 206,717.46 × 98,138.73 - Step 4: Simplify right side
149,898.87x = 20,286,988,993.23 - Step 5: Solve for x
x = 20,286,988,993.23/149,898.87 - Step 6: Final answer
x = 135,337.84
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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.