Finding the Fourth Proportional to 106,422.63, 159,526.15 and 69,006.44
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Solution
The fourth proportional to 106,422.63, 159,526.15 and 69,006.44 is: 103,439.75
Step by Step Solution
- Step 1: Write the proportion equation
106,422.63 : 159,526.15 = 69,006.44 : x - Step 2: Convert to fraction form
106,422.63/159,526.15 = 69,006.44/x - Step 3: Cross multiply
106,422.63x = 159,526.15 × 69,006.44 - Step 4: Simplify right side
106,422.63x = 11,008,330,728.26 - Step 5: Solve for x
x = 11,008,330,728.26/106,422.63 - Step 6: Final answer
x = 103,439.75
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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.