Finding the Fourth Proportional to 197,639.26, 272,742.26 and 106,995.20
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Solution
The fourth proportional to 197,639.26, 272,742.26 and 106,995.20 is: 147,653.41
Step by Step Solution
- Step 1: Write the proportion equation
197,639.26 : 272,742.26 = 106,995.20 : x - Step 2: Convert to fraction form
197,639.26/272,742.26 = 106,995.20/x - Step 3: Cross multiply
197,639.26x = 272,742.26 × 106,995.20 - Step 4: Simplify right side
197,639.26x = 29,182,110,758.46 - Step 5: Solve for x
x = 29,182,110,758.46/197,639.26 - Step 6: Final answer
x = 147,653.41
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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.