Finding the Fourth Proportional to 161,707.20, 242,560.80 and 135,463.20
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Solution
The fourth proportional to 161,707.20, 242,560.80 and 135,463.20 is: 203,194.80
Step by Step Solution
- Step 1: Write the proportion equation
161,707.20 : 242,560.80 = 135,463.20 : x - Step 2: Convert to fraction form
161,707.20/242,560.80 = 135,463.20/x - Step 3: Cross multiply
161,707.20x = 242,560.80 × 135,463.20 - Step 4: Simplify right side
161,707.20x = 32,858,062,162.56 - Step 5: Solve for x
x = 32,858,062,162.56/161,707.20 - Step 6: Final answer
x = 203,194.80
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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.