Finding the Fourth Proportional to 106,338.12, 159,507.18 and 31,452.44
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Solution
The fourth proportional to 106,338.12, 159,507.18 and 31,452.44 is: 47,178.66
Step by Step Solution
- Step 1: Write the proportion equation
106,338.12 : 159,507.18 = 31,452.44 : x - Step 2: Convert to fraction form
106,338.12/159,507.18 = 31,452.44/x - Step 3: Cross multiply
106,338.12x = 159,507.18 × 31,452.44 - Step 4: Simplify right side
106,338.12x = 5,016,890,008.52 - Step 5: Solve for x
x = 5,016,890,008.52/106,338.12 - Step 6: Final answer
x = 47,178.66
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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.