Finding the Fourth Proportional to 135,040.42, 186,350.75 and 74,609.77
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Solution
The fourth proportional to 135,040.42, 186,350.75 and 74,609.77 is: 102,958.70
Step by Step Solution
- Step 1: Write the proportion equation
135,040.42 : 186,350.75 = 74,609.77 : x - Step 2: Convert to fraction form
135,040.42/186,350.75 = 74,609.77/x - Step 3: Cross multiply
135,040.42x = 186,350.75 × 74,609.77 - Step 4: Simplify right side
135,040.42x = 13,903,586,387.10 - Step 5: Solve for x
x = 13,903,586,387.10/135,040.42 - Step 6: Final answer
x = 102,958.70
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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.