Finding the Fourth Proportional to 107,435.04, 161,128.26 and 40,851.42
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Solution
The fourth proportional to 107,435.04, 161,128.26 and 40,851.42 is: 61,267.89
Step by Step Solution
- Step 1: Write the proportion equation
107,435.04 : 161,128.26 = 40,851.42 : x - Step 2: Convert to fraction form
107,435.04/161,128.26 = 40,851.42/x - Step 3: Cross multiply
107,435.04x = 161,128.26 × 40,851.42 - Step 4: Simplify right side
107,435.04x = 6,582,318,223.13 - Step 5: Solve for x
x = 6,582,318,223.13/107,435.04 - Step 6: Final answer
x = 61,267.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.