Finding the Fourth Proportional to 143,093.25, 197,486.91 and 86,504.63
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Solution
The fourth proportional to 143,093.25, 197,486.91 and 86,504.63 is: 119,387.40
Step by Step Solution
- Step 1: Write the proportion equation
143,093.25 : 197,486.91 = 86,504.63 : x - Step 2: Convert to fraction form
143,093.25/197,486.91 = 86,504.63/x - Step 3: Cross multiply
143,093.25x = 197,486.91 × 86,504.63 - Step 4: Simplify right side
143,093.25x = 17,083,531,091.96 - Step 5: Solve for x
x = 17,083,531,091.96/143,093.25 - Step 6: Final answer
x = 119,387.40
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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.