Finding the Fourth Proportional to 113,007.84, 155,957.20 and 68,310.24
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Solution
The fourth proportional to 113,007.84, 155,957.20 and 68,310.24 is: 94,271.99
Step by Step Solution
- Step 1: Write the proportion equation
113,007.84 : 155,957.20 = 68,310.24 : x - Step 2: Convert to fraction form
113,007.84/155,957.20 = 68,310.24/x - Step 3: Cross multiply
113,007.84x = 155,957.20 × 68,310.24 - Step 4: Simplify right side
113,007.84x = 10,653,473,761.73 - Step 5: Solve for x
x = 10,653,473,761.73/113,007.84 - Step 6: Final answer
x = 94,271.99
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1.5x scale
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.