Finding the Fourth Proportional to 89,695.08, 134,335.26 and 86,584.68
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Solution
The fourth proportional to 89,695.08, 134,335.26 and 86,584.68 is: 129,676.85
Step by Step Solution
- Step 1: Write the proportion equation
89,695.08 : 134,335.26 = 86,584.68 : x - Step 2: Convert to fraction form
89,695.08/134,335.26 = 86,584.68/x - Step 3: Cross multiply
89,695.08x = 134,335.26 × 86,584.68 - Step 4: Simplify right side
89,695.08x = 11,631,375,499.82 - Step 5: Solve for x
x = 11,631,375,499.82/89,695.08 - Step 6: Final answer
x = 129,676.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.