Finding the Fourth Proportional to 135,755.70, 187,339.99 and 75,325.05
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Solution
The fourth proportional to 135,755.70, 187,339.99 and 75,325.05 is: 103,946.97
Step by Step Solution
- Step 1: Write the proportion equation
135,755.70 : 187,339.99 = 75,325.05 : x - Step 2: Convert to fraction form
135,755.70/187,339.99 = 75,325.05/x - Step 3: Cross multiply
135,755.70x = 187,339.99 × 75,325.05 - Step 4: Simplify right side
135,755.70x = 14,111,394,113.75 - Step 5: Solve for x
x = 14,111,394,113.75/135,755.70 - Step 6: Final answer
x = 103,946.97
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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.