Finding the Fourth Proportional to 107,783.93, 161,605.50 and 51,622.25
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Solution
The fourth proportional to 107,783.93, 161,605.50 and 51,622.25 is: 77,399.65
Step by Step Solution
- Step 1: Write the proportion equation
107,783.93 : 161,605.50 = 51,622.25 : x - Step 2: Convert to fraction form
107,783.93/161,605.50 = 51,622.25/x - Step 3: Cross multiply
107,783.93x = 161,605.50 × 51,622.25 - Step 4: Simplify right side
107,783.93x = 8,342,438,520.76 - Step 5: Solve for x
x = 8,342,438,520.76/107,783.93 - Step 6: Final answer
x = 77,399.65
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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.