Finding the Fourth Proportional to 128,527.24, 177,333.96 and 74,066.08
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Solution
The fourth proportional to 128,527.24, 177,333.96 and 74,066.08 is: 102,191.81
Step by Step Solution
- Step 1: Write the proportion equation
128,527.24 : 177,333.96 = 74,066.08 : x - Step 2: Convert to fraction form
128,527.24/177,333.96 = 74,066.08/x - Step 3: Cross multiply
128,527.24x = 177,333.96 × 74,066.08 - Step 4: Simplify right side
128,527.24x = 13,134,431,268.08 - Step 5: Solve for x
x = 13,134,431,268.08/128,527.24 - Step 6: Final answer
x = 102,191.81
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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.