Finding the Fourth Proportional to 187,578.12, 258,864.12 and 102,696.96
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Solution
The fourth proportional to 187,578.12, 258,864.12 and 102,696.96 is: 141,725.26
Step by Step Solution
- Step 1: Write the proportion equation
187,578.12 : 258,864.12 = 102,696.96 : x - Step 2: Convert to fraction form
187,578.12/258,864.12 = 102,696.96/x - Step 3: Cross multiply
187,578.12x = 258,864.12 × 102,696.96 - Step 4: Simplify right side
187,578.12x = 26,584,558,177.08 - Step 5: Solve for x
x = 26,584,558,177.08/187,578.12 - Step 6: Final answer
x = 141,725.26
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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.