Finding the Fourth Proportional to 98,871.09, 148,328.46 and 54,474.99
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Solution
The fourth proportional to 98,871.09, 148,328.46 and 54,474.99 is: 81,724.51
Step by Step Solution
- Step 1: Write the proportion equation
98,871.09 : 148,328.46 = 54,474.99 : x - Step 2: Convert to fraction form
98,871.09/148,328.46 = 54,474.99/x - Step 3: Cross multiply
98,871.09x = 148,328.46 × 54,474.99 - Step 4: Simplify right side
98,871.09x = 8,080,191,375.22 - Step 5: Solve for x
x = 8,080,191,375.22/98,871.09 - Step 6: Final answer
x = 81,724.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.