Finding the Fourth Proportional to 129,437.70, 194,179.35 and 53,536.02
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Solution
The fourth proportional to 129,437.70, 194,179.35 and 53,536.02 is: 80,313.46
Step by Step Solution
- Step 1: Write the proportion equation
129,437.70 : 194,179.35 = 53,536.02 : x - Step 2: Convert to fraction form
129,437.70/194,179.35 = 53,536.02/x - Step 3: Cross multiply
129,437.70x = 194,179.35 × 53,536.02 - Step 4: Simplify right side
129,437.70x = 10,395,589,565.19 - Step 5: Solve for x
x = 10,395,589,565.19/129,437.70 - Step 6: Final answer
x = 80,313.46
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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.