Finding the Fourth Proportional to 153,725.75, 230,658.68 and 78,898.43
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Solution
The fourth proportional to 153,725.75, 230,658.68 and 78,898.43 is: 118,383.60
Step by Step Solution
- Step 1: Write the proportion equation
153,725.75 : 230,658.68 = 78,898.43 : x - Step 2: Convert to fraction form
153,725.75/230,658.68 = 78,898.43/x - Step 3: Cross multiply
153,725.75x = 230,658.68 × 78,898.43 - Step 4: Simplify right side
153,725.75x = 18,198,607,323.38 - Step 5: Solve for x
x = 18,198,607,323.38/153,725.75 - Step 6: Final answer
x = 118,383.60
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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.