Finding the Fourth Proportional to 135,033.75, 186,344.35 and 74,606.94
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Solution
The fourth proportional to 135,033.75, 186,344.35 and 74,606.94 is: 102,956.35
Step by Step Solution
- Step 1: Write the proportion equation
135,033.75 : 186,344.35 = 74,606.94 : x - Step 2: Convert to fraction form
135,033.75/186,344.35 = 74,606.94/x - Step 3: Cross multiply
135,033.75x = 186,344.35 × 74,606.94 - Step 4: Simplify right side
135,033.75x = 13,902,581,553.27 - Step 5: Solve for x
x = 13,902,581,553.27/135,033.75 - Step 6: Final answer
x = 102,956.35
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1.5x scale
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.