Finding the Fourth Proportional to 110,549.20, 152,437.44 and 74,676.96
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Solution
The fourth proportional to 110,549.20, 152,437.44 and 74,676.96 is: 102,972.84
Step by Step Solution
- Step 1: Write the proportion equation
110,549.20 : 152,437.44 = 74,676.96 : x - Step 2: Convert to fraction form
110,549.20/152,437.44 = 74,676.96/x - Step 3: Cross multiply
110,549.20x = 152,437.44 × 74,676.96 - Step 4: Simplify right side
110,549.20x = 11,383,564,609.38 - Step 5: Solve for x
x = 11,383,564,609.38/110,549.20 - Step 6: Final answer
x = 102,972.84
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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.