Finding the Fourth Proportional to 116,038.59, 160,121.19 and 68,289.09
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Solution
The fourth proportional to 116,038.59, 160,121.19 and 68,289.09 is: 94,231.84
Step by Step Solution
- Step 1: Write the proportion equation
116,038.59 : 160,121.19 = 68,289.09 : x - Step 2: Convert to fraction form
116,038.59/160,121.19 = 68,289.09/x - Step 3: Cross multiply
116,038.59x = 160,121.19 × 68,289.09 - Step 4: Simplify right side
116,038.59x = 10,934,530,354.82 - Step 5: Solve for x
x = 10,934,530,354.82/116,038.59 - Step 6: Final answer
x = 94,231.84
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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.