Finding the Fourth Proportional to 187,469.12, 258,707.41 and 102,586.19
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Solution
The fourth proportional to 187,469.12, 258,707.41 and 102,586.19 is: 141,568.95
Step by Step Solution
- Step 1: Write the proportion equation
187,469.12 : 258,707.41 = 102,586.19 : x - Step 2: Convert to fraction form
187,469.12/258,707.41 = 102,586.19/x - Step 3: Cross multiply
187,469.12x = 258,707.41 × 102,586.19 - Step 4: Simplify right side
187,469.12x = 26,539,806,356.97 - Step 5: Solve for x
x = 26,539,806,356.97/187,469.12 - Step 6: Final answer
x = 141,568.95
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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.