Finding the Fourth Proportional to 102,536.47, 141,500.67 and 57,213.62
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Solution
The fourth proportional to 102,536.47, 141,500.67 and 57,213.62 is: 78,954.99
Step by Step Solution
- Step 1: Write the proportion equation
102,536.47 : 141,500.67 = 57,213.62 : x - Step 2: Convert to fraction form
102,536.47/141,500.67 = 57,213.62/x - Step 3: Cross multiply
102,536.47x = 141,500.67 × 57,213.62 - Step 4: Simplify right side
102,536.47x = 8,095,765,563.13 - Step 5: Solve for x
x = 8,095,765,563.13/102,536.47 - Step 6: Final answer
x = 78,954.99
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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.