Finding the Fourth Proportional to 129,422.65, 194,133.84 and 40,683.91
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Solution
The fourth proportional to 129,422.65, 194,133.84 and 40,683.91 is: 61,025.82
Step by Step Solution
- Step 1: Write the proportion equation
129,422.65 : 194,133.84 = 40,683.91 : x - Step 2: Convert to fraction form
129,422.65/194,133.84 = 40,683.91/x - Step 3: Cross multiply
129,422.65x = 194,133.84 × 40,683.91 - Step 4: Simplify right side
129,422.65x = 7,898,123,674.51 - Step 5: Solve for x
x = 7,898,123,674.51/129,422.65 - Step 6: Final answer
x = 61,025.82
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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.