Finding the Fourth Proportional to 89,687.08, 134,323.26 and 86,576.68
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Solution
The fourth proportional to 89,687.08, 134,323.26 and 86,576.68 is: 129,664.85
Step by Step Solution
- Step 1: Write the proportion equation
89,687.08 : 134,323.26 = 86,576.68 : x - Step 2: Convert to fraction form
89,687.08/134,323.26 = 86,576.68/x - Step 3: Cross multiply
89,687.08x = 134,323.26 × 86,576.68 - Step 4: Simplify right side
89,687.08x = 11,629,261,897.58 - Step 5: Solve for x
x = 11,629,261,897.58/89,687.08 - Step 6: Final answer
x = 129,664.85
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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.