Finding the Fourth Proportional to 112,649.11, 155,445.22 and 67,318.07
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Solution
The fourth proportional to 112,649.11, 155,445.22 and 67,318.07 is: 92,892.63
Step by Step Solution
- Step 1: Write the proportion equation
112,649.11 : 155,445.22 = 67,318.07 : x - Step 2: Convert to fraction form
112,649.11/155,445.22 = 67,318.07/x - Step 3: Cross multiply
112,649.11x = 155,445.22 × 67,318.07 - Step 4: Simplify right side
112,649.11x = 10,464,272,201.13 - Step 5: Solve for x
x = 10,464,272,201.13/112,649.11 - Step 6: Final answer
x = 92,892.63
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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.