Finding the Fourth Proportional to 116,642.97, 160,972.41 and 65,658.99
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Solution
The fourth proportional to 116,642.97, 160,972.41 and 65,658.99 is: 90,612.28
Step by Step Solution
- Step 1: Write the proportion equation
116,642.97 : 160,972.41 = 65,658.99 : x - Step 2: Convert to fraction form
116,642.97/160,972.41 = 65,658.99/x - Step 3: Cross multiply
116,642.97x = 160,972.41 × 65,658.99 - Step 4: Simplify right side
116,642.97x = 10,569,285,858.47 - Step 5: Solve for x
x = 10,569,285,858.47/116,642.97 - Step 6: Final answer
x = 90,612.28
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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.