Finding the Fourth Proportional to 155,963.23, 215,229.75 and 84,343.75
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Solution
The fourth proportional to 155,963.23, 215,229.75 and 84,343.75 is: 116,394.64
Step by Step Solution
- Step 1: Write the proportion equation
155,963.23 : 215,229.75 = 84,343.75 : x - Step 2: Convert to fraction form
155,963.23/215,229.75 = 84,343.75/x - Step 3: Cross multiply
155,963.23x = 215,229.75 × 84,343.75 - Step 4: Simplify right side
155,963.23x = 18,153,284,226.56 - Step 5: Solve for x
x = 18,153,284,226.56/155,963.23 - Step 6: Final answer
x = 116,394.64
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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.