Finding the Fourth Proportional to 161,727.20, 242,623.20 and 135,612.80
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Solution
The fourth proportional to 161,727.20, 242,623.20 and 135,612.80 is: 203,446.37
Step by Step Solution
- Step 1: Write the proportion equation
161,727.20 : 242,623.20 = 135,612.80 : x - Step 2: Convert to fraction form
161,727.20/242,623.20 = 135,612.80/x - Step 3: Cross multiply
161,727.20x = 242,623.20 × 135,612.80 - Step 4: Simplify right side
161,727.20x = 32,902,811,496.96 - Step 5: Solve for x
x = 32,902,811,496.96/161,727.20 - Step 6: Final answer
x = 203,446.37
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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.