Finding the Fourth Proportional to 132,643.64, 198,945.84 and 48,384.08
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Solution
The fourth proportional to 132,643.64, 198,945.84 and 48,384.08 is: 72,568.96
Step by Step Solution
- Step 1: Write the proportion equation
132,643.64 : 198,945.84 = 48,384.08 : x - Step 2: Convert to fraction form
132,643.64/198,945.84 = 48,384.08/x - Step 3: Cross multiply
132,643.64x = 198,945.84 × 48,384.08 - Step 4: Simplify right side
132,643.64x = 9,625,811,438.23 - Step 5: Solve for x
x = 9,625,811,438.23/132,643.64 - Step 6: Final answer
x = 72,568.96
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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.