Finding the Fourth Proportional to 132,348.18, 182,640.35 and 71,918.68
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Solution
The fourth proportional to 132,348.18, 182,640.35 and 71,918.68 is: 99,247.69
Step by Step Solution
- Step 1: Write the proportion equation
132,348.18 : 182,640.35 = 71,918.68 : x - Step 2: Convert to fraction form
132,348.18/182,640.35 = 71,918.68/x - Step 3: Cross multiply
132,348.18x = 182,640.35 × 71,918.68 - Step 4: Simplify right side
132,348.18x = 13,135,251,613.94 - Step 5: Solve for x
x = 13,135,251,613.94/132,348.18 - Step 6: Final answer
x = 99,247.69
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1.5x scale
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.