Finding the Fourth Proportional to 187,428.92, 258,658.80 and 106,843.52
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Solution
The fourth proportional to 187,428.92, 258,658.80 and 106,843.52 is: 147,447.99
Step by Step Solution
- Step 1: Write the proportion equation
187,428.92 : 258,658.80 = 106,843.52 : x - Step 2: Convert to fraction form
187,428.92/258,658.80 = 106,843.52/x - Step 3: Cross multiply
187,428.92x = 258,658.80 × 106,843.52 - Step 4: Simplify right side
187,428.92x = 27,636,016,670.98 - Step 5: Solve for x
x = 27,636,016,670.98/187,428.92 - Step 6: Final answer
x = 147,447.99
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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.