Finding the Fourth Proportional to 119,261.20, 164,511.92 and 74,471.44
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Solution
The fourth proportional to 119,261.20, 164,511.92 and 74,471.44 is: 102,727.79
Step by Step Solution
- Step 1: Write the proportion equation
119,261.20 : 164,511.92 = 74,471.44 : x - Step 2: Convert to fraction form
119,261.20/164,511.92 = 74,471.44/x - Step 3: Cross multiply
119,261.20x = 164,511.92 × 74,471.44 - Step 4: Simplify right side
119,261.20x = 12,251,439,354.46 - Step 5: Solve for x
x = 12,251,439,354.46/119,261.20 - Step 6: Final answer
x = 102,727.79
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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.