Finding the Fourth Proportional to 116,711.28, 160,836.84 and 84,829.68
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Solution
The fourth proportional to 116,711.28, 160,836.84 and 84,829.68 is: 116,901.62
Step by Step Solution
- Step 1: Write the proportion equation
116,711.28 : 160,836.84 = 84,829.68 : x - Step 2: Convert to fraction form
116,711.28/160,836.84 = 84,829.68/x - Step 3: Cross multiply
116,711.28x = 160,836.84 × 84,829.68 - Step 4: Simplify right side
116,711.28x = 13,643,737,669.41 - Step 5: Solve for x
x = 13,643,737,669.41/116,711.28 - Step 6: Final answer
x = 116,901.62
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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.