Finding the Fourth Proportional to 132,605.37, 182,980.42 and 78,153.99
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Solution
The fourth proportional to 132,605.37, 182,980.42 and 78,153.99 is: 107,843.67
Step by Step Solution
- Step 1: Write the proportion equation
132,605.37 : 182,980.42 = 78,153.99 : x - Step 2: Convert to fraction form
132,605.37/182,980.42 = 78,153.99/x - Step 3: Cross multiply
132,605.37x = 182,980.42 × 78,153.99 - Step 4: Simplify right side
132,605.37x = 14,300,649,914.88 - Step 5: Solve for x
x = 14,300,649,914.88/132,605.37 - Step 6: Final answer
x = 107,843.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.