Finding the Fourth Proportional to 102,737.97, 154,138.11 and 72,810.07
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Solution
The fourth proportional to 102,737.97, 154,138.11 and 72,810.07 is: 109,237.19
Step by Step Solution
- Step 1: Write the proportion equation
102,737.97 : 154,138.11 = 72,810.07 : x - Step 2: Convert to fraction form
102,737.97/154,138.11 = 72,810.07/x - Step 3: Cross multiply
102,737.97x = 154,138.11 × 72,810.07 - Step 4: Simplify right side
102,737.97x = 11,222,806,787.41 - Step 5: Solve for x
x = 11,222,806,787.41/102,737.97 - Step 6: Final answer
x = 109,237.19
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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.