Finding the Fourth Proportional to 187,043.14, 258,120.87 and 102,160.18
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Solution
The fourth proportional to 187,043.14, 258,120.87 and 102,160.18 is: 140,981.78
Step by Step Solution
- Step 1: Write the proportion equation
187,043.14 : 258,120.87 = 102,160.18 : x - Step 2: Convert to fraction form
187,043.14/258,120.87 = 102,160.18/x - Step 3: Cross multiply
187,043.14x = 258,120.87 × 102,160.18 - Step 4: Simplify right side
187,043.14x = 26,369,674,540.96 - Step 5: Solve for x
x = 26,369,674,540.96/187,043.14 - Step 6: Final answer
x = 140,981.78
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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.