Finding the Fourth Proportional to 121,559.24, 182,402.04 and 91,968.32
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Solution
The fourth proportional to 121,559.24, 182,402.04 and 91,968.32 is: 138,000.28
Step by Step Solution
- Step 1: Write the proportion equation
121,559.24 : 182,402.04 = 91,968.32 : x - Step 2: Convert to fraction form
121,559.24/182,402.04 = 91,968.32/x - Step 3: Cross multiply
121,559.24x = 182,402.04 × 91,968.32 - Step 4: Simplify right side
121,559.24x = 16,775,209,183.37 - Step 5: Solve for x
x = 16,775,209,183.37/121,559.24 - Step 6: Final answer
x = 138,000.28
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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.