Finding the Fourth Proportional to 157,781.92, 236,497.56 and 120,218.14
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Solution
The fourth proportional to 157,781.92, 236,497.56 and 120,218.14 is: 180,193.63
Step by Step Solution
- Step 1: Write the proportion equation
157,781.92 : 236,497.56 = 120,218.14 : x - Step 2: Convert to fraction form
157,781.92/236,497.56 = 120,218.14/x - Step 3: Cross multiply
157,781.92x = 236,497.56 × 120,218.14 - Step 4: Simplify right side
157,781.92x = 28,431,296,777.74 - Step 5: Solve for x
x = 28,431,296,777.74/157,781.92 - Step 6: Final answer
x = 180,193.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.