Finding the Fourth Proportional to 187,640.91, 258,941.84 and 102,757.95
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Solution
The fourth proportional to 187,640.91, 258,941.84 and 102,757.95 is: 141,804.54
Step by Step Solution
- Step 1: Write the proportion equation
187,640.91 : 258,941.84 = 102,757.95 : x - Step 2: Convert to fraction form
187,640.91/258,941.84 = 102,757.95/x - Step 3: Cross multiply
187,640.91x = 258,941.84 × 102,757.95 - Step 4: Simplify right side
187,640.91x = 26,608,332,133.84 - Step 5: Solve for x
x = 26,608,332,133.84/187,640.91 - Step 6: Final answer
x = 141,804.54
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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.