Finding the Fourth Proportional to 121,561.26, 182,396.43 and 77,176.14
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Solution
The fourth proportional to 121,561.26, 182,396.43 and 77,176.14 is: 115,798.84
Step by Step Solution
- Step 1: Write the proportion equation
121,561.26 : 182,396.43 = 77,176.14 : x - Step 2: Convert to fraction form
121,561.26/182,396.43 = 77,176.14/x - Step 3: Cross multiply
121,561.26x = 182,396.43 × 77,176.14 - Step 4: Simplify right side
121,561.26x = 14,076,652,417.18 - Step 5: Solve for x
x = 14,076,652,417.18/121,561.26 - Step 6: Final answer
x = 115,798.84
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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.