Finding the Fourth Proportional to 155,758.10, 214,946.03 and 84,138.09
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Solution
The fourth proportional to 155,758.10, 214,946.03 and 84,138.09 is: 116,110.49
Step by Step Solution
- Step 1: Write the proportion equation
155,758.10 : 214,946.03 = 84,138.09 : x - Step 2: Convert to fraction form
155,758.10/214,946.03 = 84,138.09/x - Step 3: Cross multiply
155,758.10x = 214,946.03 × 84,138.09 - Step 4: Simplify right side
155,758.10x = 18,085,147,996.59 - Step 5: Solve for x
x = 18,085,147,996.59/155,758.10 - Step 6: Final answer
x = 116,110.49
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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.