Finding the Fourth Proportional to 113,807.26, 156,957.62 and 68,476.78
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Solution
The fourth proportional to 113,807.26, 156,957.62 and 68,476.78 is: 94,439.95
Step by Step Solution
- Step 1: Write the proportion equation
113,807.26 : 156,957.62 = 68,476.78 : x - Step 2: Convert to fraction form
113,807.26/156,957.62 = 68,476.78/x - Step 3: Cross multiply
113,807.26x = 156,957.62 × 68,476.78 - Step 4: Simplify right side
113,807.26x = 10,747,952,414.06 - Step 5: Solve for x
x = 10,747,952,414.06/113,807.26 - Step 6: Final answer
x = 94,439.95
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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.