Finding the Fourth Proportional to 125,613.99, 188,315.05 and 54,483.07
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Solution
The fourth proportional to 125,613.99, 188,315.05 and 54,483.07 is: 81,678.66
Step by Step Solution
- Step 1: Write the proportion equation
125,613.99 : 188,315.05 = 54,483.07 : x - Step 2: Convert to fraction form
125,613.99/188,315.05 = 54,483.07/x - Step 3: Cross multiply
125,613.99x = 188,315.05 × 54,483.07 - Step 4: Simplify right side
125,613.99x = 10,259,981,787.87 - Step 5: Solve for x
x = 10,259,981,787.87/125,613.99 - Step 6: Final answer
x = 81,678.66
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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.