Finding the Fourth Proportional to 122,575.80, 183,863.70 and 39,469.80
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Solution
The fourth proportional to 122,575.80, 183,863.70 and 39,469.80 is: 59,204.70
Step by Step Solution
- Step 1: Write the proportion equation
122,575.80 : 183,863.70 = 39,469.80 : x - Step 2: Convert to fraction form
122,575.80/183,863.70 = 39,469.80/x - Step 3: Cross multiply
122,575.80x = 183,863.70 × 39,469.80 - Step 4: Simplify right side
122,575.80x = 7,257,063,466.26 - Step 5: Solve for x
x = 7,257,063,466.26/122,575.80 - Step 6: Final answer
x = 59,204.70
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1.5x scale
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.