Finding the Fourth Proportional to 135,301.94, 186,713.87 and 74,872.54
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Solution
The fourth proportional to 135,301.94, 186,713.87 and 74,872.54 is: 103,322.55
Step by Step Solution
- Step 1: Write the proportion equation
135,301.94 : 186,713.87 = 74,872.54 : x - Step 2: Convert to fraction form
135,301.94/186,713.87 = 74,872.54/x - Step 3: Cross multiply
135,301.94x = 186,713.87 × 74,872.54 - Step 4: Simplify right side
135,301.94x = 13,979,741,420.53 - Step 5: Solve for x
x = 13,979,741,420.53/135,301.94 - Step 6: Final answer
x = 103,322.55
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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.