Finding the Fourth Proportional to 168,869.10, 253,221.84 and 68,989.62
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Solution
The fourth proportional to 168,869.10, 253,221.84 and 68,989.62 is: 103,451.01
Step by Step Solution
- Step 1: Write the proportion equation
168,869.10 : 253,221.84 = 68,989.62 : x - Step 2: Convert to fraction form
168,869.10/253,221.84 = 68,989.62/x - Step 3: Cross multiply
168,869.10x = 253,221.84 × 68,989.62 - Step 4: Simplify right side
168,869.10x = 17,469,678,517.30 - Step 5: Solve for x
x = 17,469,678,517.30/168,869.10 - Step 6: Final answer
x = 103,451.01
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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.