Finding the Fourth Proportional to 161,842.80, 242,706.60 and 73,138.80
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Solution
The fourth proportional to 161,842.80, 242,706.60 and 73,138.80 is: 109,682.17
Step by Step Solution
- Step 1: Write the proportion equation
161,842.80 : 242,706.60 = 73,138.80 : x - Step 2: Convert to fraction form
161,842.80/242,706.60 = 73,138.80/x - Step 3: Cross multiply
161,842.80x = 242,706.60 × 73,138.80 - Step 4: Simplify right side
161,842.80x = 17,751,269,476.08 - Step 5: Solve for x
x = 17,751,269,476.08/161,842.80 - Step 6: Final answer
x = 109,682.17
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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.