Finding the Fourth Proportional to 126,884.97, 190,306.80 and 47,980.44
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Solution
The fourth proportional to 126,884.97, 190,306.80 and 47,980.44 is: 71,962.85
Step by Step Solution
- Step 1: Write the proportion equation
126,884.97 : 190,306.80 = 47,980.44 : x - Step 2: Convert to fraction form
126,884.97/190,306.80 = 47,980.44/x - Step 3: Cross multiply
126,884.97x = 190,306.80 × 47,980.44 - Step 4: Simplify right side
126,884.97x = 9,131,003,998.99 - Step 5: Solve for x
x = 9,131,003,998.99/126,884.97 - Step 6: Final answer
x = 71,962.85
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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.