Finding the Fourth Proportional to 135,687.57, 187,260.39 and 75,277.68
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Solution
The fourth proportional to 135,687.57, 187,260.39 and 75,277.68 is: 103,889.60
Step by Step Solution
- Step 1: Write the proportion equation
135,687.57 : 187,260.39 = 75,277.68 : x - Step 2: Convert to fraction form
135,687.57/187,260.39 = 75,277.68/x - Step 3: Cross multiply
135,687.57x = 187,260.39 × 75,277.68 - Step 4: Simplify right side
135,687.57x = 14,096,527,715.10 - Step 5: Solve for x
x = 14,096,527,715.10/135,687.57 - Step 6: Final answer
x = 103,889.60
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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.