Finding the Fourth Proportional to 122,541.80, 183,812.70 and 39,435.80
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Solution
The fourth proportional to 122,541.80, 183,812.70 and 39,435.80 is: 59,153.70
Step by Step Solution
- Step 1: Write the proportion equation
122,541.80 : 183,812.70 = 39,435.80 : x - Step 2: Convert to fraction form
122,541.80/183,812.70 = 39,435.80/x - Step 3: Cross multiply
122,541.80x = 183,812.70 × 39,435.80 - Step 4: Simplify right side
122,541.80x = 7,248,800,874.66 - Step 5: Solve for x
x = 7,248,800,874.66/122,541.80 - Step 6: Final answer
x = 59,153.70
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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.