Finding the Fourth Proportional to 156,294.63, 215,686.26 and 84,676.41
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Solution
The fourth proportional to 156,294.63, 215,686.26 and 84,676.41 is: 116,853.27
Step by Step Solution
- Step 1: Write the proportion equation
156,294.63 : 215,686.26 = 84,676.41 : x - Step 2: Convert to fraction form
156,294.63/215,686.26 = 84,676.41/x - Step 3: Cross multiply
156,294.63x = 215,686.26 × 84,676.41 - Step 4: Simplify right side
156,294.63x = 18,263,538,183.13 - Step 5: Solve for x
x = 18,263,538,183.13/156,294.63 - Step 6: Final answer
x = 116,853.27
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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.