Finding the Fourth Proportional to 106,836.64, 160,129.12 and 43,617.28
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Solution
The fourth proportional to 106,836.64, 160,129.12 and 43,617.28 is: 65,374.54
Step by Step Solution
- Step 1: Write the proportion equation
106,836.64 : 160,129.12 = 43,617.28 : x - Step 2: Convert to fraction form
106,836.64/160,129.12 = 43,617.28/x - Step 3: Cross multiply
106,836.64x = 160,129.12 × 43,617.28 - Step 4: Simplify right side
106,836.64x = 6,984,396,663.19 - Step 5: Solve for x
x = 6,984,396,663.19/106,836.64 - Step 6: Final answer
x = 65,374.54
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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.