Finding the Fourth Proportional to 107,979.23, 161,899.47 and 44,842.91
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Solution
The fourth proportional to 107,979.23, 161,899.47 and 44,842.91 is: 67,235.55
Step by Step Solution
- Step 1: Write the proportion equation
107,979.23 : 161,899.47 = 44,842.91 : x - Step 2: Convert to fraction form
107,979.23/161,899.47 = 44,842.91/x - Step 3: Cross multiply
107,979.23x = 161,899.47 × 44,842.91 - Step 4: Simplify right side
107,979.23x = 7,260,042,552.76 - Step 5: Solve for x
x = 7,260,042,552.76/107,979.23 - Step 6: Final answer
x = 67,235.55
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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.