Finding the Fourth Proportional to 107,419.05, 161,128.58 and 60,763.05
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Solution
The fourth proportional to 107,419.05, 161,128.58 and 60,763.05 is: 91,144.58
Step by Step Solution
- Step 1: Write the proportion equation
107,419.05 : 161,128.58 = 60,763.05 : x - Step 2: Convert to fraction form
107,419.05/161,128.58 = 60,763.05/x - Step 3: Cross multiply
107,419.05x = 161,128.58 × 60,763.05 - Step 4: Simplify right side
107,419.05x = 9,790,663,659.15 - Step 5: Solve for x
x = 9,790,663,659.15/107,419.05 - Step 6: Final answer
x = 91,144.58
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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.