Finding the Fourth Proportional to 142,040.68, 213,005.67 and 53,245.75
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Solution
The fourth proportional to 142,040.68, 213,005.67 and 53,245.75 is: 79,847.88
Step by Step Solution
- Step 1: Write the proportion equation
142,040.68 : 213,005.67 = 53,245.75 : x - Step 2: Convert to fraction form
142,040.68/213,005.67 = 53,245.75/x - Step 3: Cross multiply
142,040.68x = 213,005.67 × 53,245.75 - Step 4: Simplify right side
142,040.68x = 11,341,646,653.40 - Step 5: Solve for x
x = 11,341,646,653.40/142,040.68 - Step 6: Final answer
x = 79,847.88
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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.