Finding the Fourth Proportional to 106,434.21, 159,672.92 and 39,873.09
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Solution
The fourth proportional to 106,434.21, 159,672.92 and 39,873.09 is: 59,817.73
Step by Step Solution
- Step 1: Write the proportion equation
106,434.21 : 159,672.92 = 39,873.09 : x - Step 2: Convert to fraction form
106,434.21/159,672.92 = 39,873.09/x - Step 3: Cross multiply
106,434.21x = 159,672.92 × 39,873.09 - Step 4: Simplify right side
106,434.21x = 6,366,652,510.36 - Step 5: Solve for x
x = 6,366,652,510.36/106,434.21 - Step 6: Final answer
x = 59,817.73
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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.