Finding the Fourth Proportional to 131,683.10, 181,721.36 and 71,252.42
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Solution
The fourth proportional to 131,683.10, 181,721.36 and 71,252.42 is: 98,327.62
Step by Step Solution
- Step 1: Write the proportion equation
131,683.10 : 181,721.36 = 71,252.42 : x - Step 2: Convert to fraction form
131,683.10/181,721.36 = 71,252.42/x - Step 3: Cross multiply
131,683.10x = 181,721.36 × 71,252.42 - Step 4: Simplify right side
131,683.10x = 12,948,085,935.22 - Step 5: Solve for x
x = 12,948,085,935.22/131,683.10 - Step 6: Final answer
x = 98,327.62
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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.