Finding the Fourth Proportional to 107,453.28, 161,278.47 and 57,589.68
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Solution
The fourth proportional to 107,453.28, 161,278.47 and 57,589.68 is: 86,437.34
Step by Step Solution
- Step 1: Write the proportion equation
107,453.28 : 161,278.47 = 57,589.68 : x - Step 2: Convert to fraction form
107,453.28/161,278.47 = 57,589.68/x - Step 3: Cross multiply
107,453.28x = 161,278.47 × 57,589.68 - Step 4: Simplify right side
107,453.28x = 9,287,975,478.19 - Step 5: Solve for x
x = 9,287,975,478.19/107,453.28 - Step 6: Final answer
x = 86,437.34
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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.