Finding the Fourth Proportional to 139,631.20, 209,461.36 and 44,837.44
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Solution
The fourth proportional to 139,631.20, 209,461.36 and 44,837.44 is: 67,260.84
Step by Step Solution
- Step 1: Write the proportion equation
139,631.20 : 209,461.36 = 44,837.44 : x - Step 2: Convert to fraction form
139,631.20/209,461.36 = 44,837.44/x - Step 3: Cross multiply
139,631.20x = 209,461.36 × 44,837.44 - Step 4: Simplify right side
139,631.20x = 9,391,711,161.32 - Step 5: Solve for x
x = 9,391,711,161.32/139,631.20 - Step 6: Final answer
x = 67,260.84
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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.