Finding the Fourth Proportional to 187,553.12, 258,813.60 and 102,654.08
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Solution
The fourth proportional to 187,553.12, 258,813.60 and 102,654.08 is: 141,657.32
Step by Step Solution
- Step 1: Write the proportion equation
187,553.12 : 258,813.60 = 102,654.08 : x - Step 2: Convert to fraction form
187,553.12/258,813.60 = 102,654.08/x - Step 3: Cross multiply
187,553.12x = 258,813.60 × 102,654.08 - Step 4: Simplify right side
187,553.12x = 26,568,271,999.49 - Step 5: Solve for x
x = 26,568,271,999.49/187,553.12 - Step 6: Final answer
x = 141,657.32
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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.