Finding the Fourth Proportional to 107,449.12, 161,198.90 and 105,663.99
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Solution
The fourth proportional to 107,449.12, 161,198.90 and 105,663.99 is: 158,520.79
Step by Step Solution
- Step 1: Write the proportion equation
107,449.12 : 161,198.90 = 105,663.99 : x - Step 2: Convert to fraction form
107,449.12/161,198.90 = 105,663.99/x - Step 3: Cross multiply
107,449.12x = 161,198.90 × 105,663.99 - Step 4: Simplify right side
107,449.12x = 17,032,918,957.61 - Step 5: Solve for x
x = 17,032,918,957.61/107,449.12 - Step 6: Final answer
x = 158,520.79
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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.