Finding the Fourth Proportional to 135,329.28, 186,751.68 and 74,896.44
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Solution
The fourth proportional to 135,329.28, 186,751.68 and 74,896.44 is: 103,355.58
Step by Step Solution
- Step 1: Write the proportion equation
135,329.28 : 186,751.68 = 74,896.44 : x - Step 2: Convert to fraction form
135,329.28/186,751.68 = 74,896.44/x - Step 3: Cross multiply
135,329.28x = 186,751.68 × 74,896.44 - Step 4: Simplify right side
135,329.28x = 13,987,035,996.02 - Step 5: Solve for x
x = 13,987,035,996.02/135,329.28 - Step 6: Final answer
x = 103,355.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.