Finding the Fourth Proportional to 122,542.20, 183,813.30 and 80,551.80
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Solution
The fourth proportional to 122,542.20, 183,813.30 and 80,551.80 is: 120,827.70
Step by Step Solution
- Step 1: Write the proportion equation
122,542.20 : 183,813.30 = 80,551.80 : x - Step 2: Convert to fraction form
122,542.20/183,813.30 = 80,551.80/x - Step 3: Cross multiply
122,542.20x = 183,813.30 × 80,551.80 - Step 4: Simplify right side
122,542.20x = 14,806,492,178.94 - Step 5: Solve for x
x = 14,806,492,178.94/122,542.20 - Step 6: Final answer
x = 120,827.70
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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.