Finding the Fourth Proportional to 132,331.40, 198,497.10 and 87,813.80
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Solution
The fourth proportional to 132,331.40, 198,497.10 and 87,813.80 is: 131,720.70
Step by Step Solution
- Step 1: Write the proportion equation
132,331.40 : 198,497.10 = 87,813.80 : x - Step 2: Convert to fraction form
132,331.40/198,497.10 = 87,813.80/x - Step 3: Cross multiply
132,331.40x = 198,497.10 × 87,813.80 - Step 4: Simplify right side
132,331.40x = 17,430,784,639.98 - Step 5: Solve for x
x = 17,430,784,639.98/132,331.40 - Step 6: Final answer
x = 131,720.70
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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.