Finding the Fourth Proportional to 129,247.29, 193,870.98 and 40,507.68
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Solution
The fourth proportional to 129,247.29, 193,870.98 and 40,507.68 is: 60,761.53
Step by Step Solution
- Step 1: Write the proportion equation
129,247.29 : 193,870.98 = 40,507.68 : x - Step 2: Convert to fraction form
129,247.29/193,870.98 = 40,507.68/x - Step 3: Cross multiply
129,247.29x = 193,870.98 × 40,507.68 - Step 4: Simplify right side
129,247.29x = 7,853,263,619.13 - Step 5: Solve for x
x = 7,853,263,619.13/129,247.29 - Step 6: Final answer
x = 60,761.53
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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.