Finding the Fourth Proportional to 136,322.60, 188,120.58 and 76,695.08
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Solution
The fourth proportional to 136,322.60, 188,120.58 and 76,695.08 is: 105,836.62
Step by Step Solution
- Step 1: Write the proportion equation
136,322.60 : 188,120.58 = 76,695.08 : x - Step 2: Convert to fraction form
136,322.60/188,120.58 = 76,695.08/x - Step 3: Cross multiply
136,322.60x = 188,120.58 × 76,695.08 - Step 4: Simplify right side
136,322.60x = 14,427,922,932.75 - Step 5: Solve for x
x = 14,427,922,932.75/136,322.60 - Step 6: Final answer
x = 105,836.62
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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.