Finding the Fourth Proportional to 107,726.63, 161,613.11 and 53,720.75
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Solution
The fourth proportional to 107,726.63, 161,613.11 and 53,720.75 is: 80,592.66
Step by Step Solution
- Step 1: Write the proportion equation
107,726.63 : 161,613.11 = 53,720.75 : x - Step 2: Convert to fraction form
107,726.63/161,613.11 = 53,720.75/x - Step 3: Cross multiply
107,726.63x = 161,613.11 × 53,720.75 - Step 4: Simplify right side
107,726.63x = 8,681,976,402.36 - Step 5: Solve for x
x = 8,681,976,402.36/107,726.63 - Step 6: Final answer
x = 80,592.66
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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.