Finding the Fourth Proportional to 156,239.09, 215,608.87 and 84,617.47
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Solution
The fourth proportional to 156,239.09, 215,608.87 and 84,617.47 is: 116,771.53
Step by Step Solution
- Step 1: Write the proportion equation
156,239.09 : 215,608.87 = 84,617.47 : x - Step 2: Convert to fraction form
156,239.09/215,608.87 = 84,617.47/x - Step 3: Cross multiply
156,239.09x = 215,608.87 × 84,617.47 - Step 4: Simplify right side
156,239.09x = 18,244,277,088.96 - Step 5: Solve for x
x = 18,244,277,088.96/156,239.09 - Step 6: Final answer
x = 116,771.53
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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.