Finding the Fourth Proportional to 114,129.74, 157,549.49 and 68,205.59
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Solution
The fourth proportional to 114,129.74, 157,549.49 and 68,205.59 is: 94,153.86
Step by Step Solution
- Step 1: Write the proportion equation
114,129.74 : 157,549.49 = 68,205.59 : x - Step 2: Convert to fraction form
114,129.74/157,549.49 = 68,205.59/x - Step 3: Cross multiply
114,129.74x = 157,549.49 × 68,205.59 - Step 4: Simplify right side
114,129.74x = 10,745,755,919.65 - Step 5: Solve for x
x = 10,745,755,919.65/114,129.74 - Step 6: Final answer
x = 94,153.86
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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.