Finding the Fourth Proportional to 145,654.68, 201,007.26 and 81,994.80
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Solution
The fourth proportional to 145,654.68, 201,007.26 and 81,994.80 is: 113,154.96
Step by Step Solution
- Step 1: Write the proportion equation
145,654.68 : 201,007.26 = 81,994.80 : x - Step 2: Convert to fraction form
145,654.68/201,007.26 = 81,994.80/x - Step 3: Cross multiply
145,654.68x = 201,007.26 × 81,994.80 - Step 4: Simplify right side
145,654.68x = 16,481,550,082.25 - Step 5: Solve for x
x = 16,481,550,082.25/145,654.68 - Step 6: Final answer
x = 113,154.96
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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.