Finding the Fourth Proportional to 135,761.67, 187,355.39 and 75,336.75
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Solution
The fourth proportional to 135,761.67, 187,355.39 and 75,336.75 is: 103,967.09
Step by Step Solution
- Step 1: Write the proportion equation
135,761.67 : 187,355.39 = 75,336.75 : x - Step 2: Convert to fraction form
135,761.67/187,355.39 = 75,336.75/x - Step 3: Cross multiply
135,761.67x = 187,355.39 × 75,336.75 - Step 4: Simplify right side
135,761.67x = 14,114,745,800.90 - Step 5: Solve for x
x = 14,114,745,800.90/135,761.67 - Step 6: Final answer
x = 103,967.09
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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.