Finding the Fourth Proportional to 203,637.13, 281,021.18 and 113,001.53
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Solution
The fourth proportional to 203,637.13, 281,021.18 and 113,001.53 is: 155,943.18
Step by Step Solution
- Step 1: Write the proportion equation
203,637.13 : 281,021.18 = 113,001.53 : x - Step 2: Convert to fraction form
203,637.13/281,021.18 = 113,001.53/x - Step 3: Cross multiply
203,637.13x = 281,021.18 × 113,001.53 - Step 4: Simplify right side
203,637.13x = 31,755,821,332.29 - Step 5: Solve for x
x = 31,755,821,332.29/203,637.13 - Step 6: Final answer
x = 155,943.18
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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.