Finding the Fourth Proportional to 132,639.48, 198,957.12 and 48,399.06
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Solution
The fourth proportional to 132,639.48, 198,957.12 and 48,399.06 is: 72,597.82
Step by Step Solution
- Step 1: Write the proportion equation
132,639.48 : 198,957.12 = 48,399.06 : x - Step 2: Convert to fraction form
132,639.48/198,957.12 = 48,399.06/x - Step 3: Cross multiply
132,639.48x = 198,957.12 × 48,399.06 - Step 4: Simplify right side
132,639.48x = 9,629,337,588.31 - Step 5: Solve for x
x = 9,629,337,588.31/132,639.48 - Step 6: Final answer
x = 72,597.82
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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.