Finding the Fourth Proportional to 187,109.51, 258,137.82 and 115,364.97
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Solution
The fourth proportional to 187,109.51, 258,137.82 and 115,364.97 is: 159,158.47
Step by Step Solution
- Step 1: Write the proportion equation
187,109.51 : 258,137.82 = 115,364.97 : x - Step 2: Convert to fraction form
187,109.51/258,137.82 = 115,364.97/x - Step 3: Cross multiply
187,109.51x = 258,137.82 × 115,364.97 - Step 4: Simplify right side
187,109.51x = 29,780,061,860.17 - Step 5: Solve for x
x = 29,780,061,860.17/187,109.51 - Step 6: Final answer
x = 159,158.47
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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.