Finding the Fourth Proportional to 137,441.91, 189,474.69 and 101,079.09
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Solution
The fourth proportional to 137,441.91, 189,474.69 and 101,079.09 is: 139,345.63
Step by Step Solution
- Step 1: Write the proportion equation
137,441.91 : 189,474.69 = 101,079.09 : x - Step 2: Convert to fraction form
137,441.91/189,474.69 = 101,079.09/x - Step 3: Cross multiply
137,441.91x = 189,474.69 × 101,079.09 - Step 4: Simplify right side
137,441.91x = 19,151,929,622.28 - Step 5: Solve for x
x = 19,151,929,622.28/137,441.91 - Step 6: Final answer
x = 139,345.63
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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.