Finding the Fourth Proportional to 108,760.49, 163,121.28 and 69,200.09
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Solution
The fourth proportional to 108,760.49, 163,121.28 and 69,200.09 is: 103,787.75
Step by Step Solution
- Step 1: Write the proportion equation
108,760.49 : 163,121.28 = 69,200.09 : x - Step 2: Convert to fraction form
108,760.49/163,121.28 = 69,200.09/x - Step 3: Cross multiply
108,760.49x = 163,121.28 × 69,200.09 - Step 4: Simplify right side
108,760.49x = 11,288,006,441.31 - Step 5: Solve for x
x = 11,288,006,441.31/108,760.49 - Step 6: Final answer
x = 103,787.75
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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.