Finding the Fourth Proportional to 129,516.15, 194,264.74 and 40,795.03
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Solution
The fourth proportional to 129,516.15, 194,264.74 and 40,795.03 is: 61,189.56
Step by Step Solution
- Step 1: Write the proportion equation
129,516.15 : 194,264.74 = 40,795.03 : x - Step 2: Convert to fraction form
129,516.15/194,264.74 = 40,795.03/x - Step 3: Cross multiply
129,516.15x = 194,264.74 × 40,795.03 - Step 4: Simplify right side
129,516.15x = 7,925,035,896.24 - Step 5: Solve for x
x = 7,925,035,896.24/129,516.15 - Step 6: Final answer
x = 61,189.56
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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.