Finding the Fourth Proportional to 187,132.72, 258,244.96 and 102,249.76
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Solution
The fourth proportional to 187,132.72, 258,244.96 and 102,249.76 is: 141,105.66
Step by Step Solution
- Step 1: Write the proportion equation
187,132.72 : 258,244.96 = 102,249.76 : x - Step 2: Convert to fraction form
187,132.72/258,244.96 = 102,249.76/x - Step 3: Cross multiply
187,132.72x = 258,244.96 × 102,249.76 - Step 4: Simplify right side
187,132.72x = 26,405,485,181.21 - Step 5: Solve for x
x = 26,405,485,181.21/187,132.72 - Step 6: Final answer
x = 141,105.66
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1.5x scale
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.