Finding the Fourth Proportional to 121,425.12, 182,159.61 and 54,896.58
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Solution
The fourth proportional to 121,425.12, 182,159.61 and 54,896.58 is: 82,354.78
Step by Step Solution
- Step 1: Write the proportion equation
121,425.12 : 182,159.61 = 54,896.58 : x - Step 2: Convert to fraction form
121,425.12/182,159.61 = 54,896.58/x - Step 3: Cross multiply
121,425.12x = 182,159.61 × 54,896.58 - Step 4: Simplify right side
121,425.12x = 9,999,939,603.13 - Step 5: Solve for x
x = 9,999,939,603.13/121,425.12 - Step 6: Final answer
x = 82,354.78
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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.