Finding the Fourth Proportional to 107,845.77, 161,769.68 and 28,959.99
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Solution
The fourth proportional to 107,845.77, 161,769.68 and 28,959.99 is: 43,440.26
Step by Step Solution
- Step 1: Write the proportion equation
107,845.77 : 161,769.68 = 28,959.99 : x - Step 2: Convert to fraction form
107,845.77/161,769.68 = 28,959.99/x - Step 3: Cross multiply
107,845.77x = 161,769.68 × 28,959.99 - Step 4: Simplify right side
107,845.77x = 4,684,848,315.10 - Step 5: Solve for x
x = 4,684,848,315.10/107,845.77 - Step 6: Final answer
x = 43,440.26
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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.