Finding the Fourth Proportional to 132,532.68, 182,881.45 and 78,807.32
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Solution
The fourth proportional to 132,532.68, 182,881.45 and 78,807.32 is: 108,745.99
Step by Step Solution
- Step 1: Write the proportion equation
132,532.68 : 182,881.45 = 78,807.32 : x - Step 2: Convert to fraction form
132,532.68/182,881.45 = 78,807.32/x - Step 3: Cross multiply
132,532.68x = 182,881.45 × 78,807.32 - Step 4: Simplify right side
132,532.68x = 14,412,396,952.21 - Step 5: Solve for x
x = 14,412,396,952.21/132,532.68 - Step 6: Final answer
x = 108,745.99
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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.