Finding the Fourth Proportional to 152,803.09, 229,251.57 and 72,942.99
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Solution
The fourth proportional to 152,803.09, 229,251.57 and 72,942.99 is: 109,436.89
Step by Step Solution
- Step 1: Write the proportion equation
152,803.09 : 229,251.57 = 72,942.99 : x - Step 2: Convert to fraction form
152,803.09/229,251.57 = 72,942.99/x - Step 3: Cross multiply
152,803.09x = 229,251.57 × 72,942.99 - Step 4: Simplify right side
152,803.09x = 16,722,294,977.99 - Step 5: Solve for x
x = 16,722,294,977.99/152,803.09 - Step 6: Final answer
x = 109,436.89
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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.