Finding the Fourth Proportional to 106,934.91, 160,609.96 and 78,743.62
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Solution
The fourth proportional to 106,934.91, 160,609.96 and 78,743.62 is: 118,268.30
Step by Step Solution
- Step 1: Write the proportion equation
106,934.91 : 160,609.96 = 78,743.62 : x - Step 2: Convert to fraction form
106,934.91/160,609.96 = 78,743.62/x - Step 3: Cross multiply
106,934.91x = 160,609.96 × 78,743.62 - Step 4: Simplify right side
106,934.91x = 12,647,009,658.46 - Step 5: Solve for x
x = 12,647,009,658.46/106,934.91 - Step 6: Final answer
x = 118,268.30
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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.