Finding the Fourth Proportional to 155,705.06, 214,872.99 and 84,085.09
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Solution
The fourth proportional to 155,705.06, 214,872.99 and 84,085.09 is: 116,037.42
Step by Step Solution
- Step 1: Write the proportion equation
155,705.06 : 214,872.99 = 84,085.09 : x - Step 2: Convert to fraction form
155,705.06/214,872.99 = 84,085.09/x - Step 3: Cross multiply
155,705.06x = 214,872.99 × 84,085.09 - Step 4: Simplify right side
155,705.06x = 18,067,613,850.22 - Step 5: Solve for x
x = 18,067,613,850.22/155,705.06 - Step 6: Final answer
x = 116,037.42
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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.