Finding the Fourth Proportional to 132,117.68, 182,310.36 and 78,393.44
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Solution
The fourth proportional to 132,117.68, 182,310.36 and 78,393.44 is: 108,175.80
Step by Step Solution
- Step 1: Write the proportion equation
132,117.68 : 182,310.36 = 78,393.44 : x - Step 2: Convert to fraction form
132,117.68/182,310.36 = 78,393.44/x - Step 3: Cross multiply
132,117.68x = 182,310.36 × 78,393.44 - Step 4: Simplify right side
132,117.68x = 14,291,936,268.04 - Step 5: Solve for x
x = 14,291,936,268.04/132,117.68 - Step 6: Final answer
x = 108,175.80
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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.