Finding the Fourth Proportional to 106,485.10, 146,996.67 and 68,777.74
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Solution
The fourth proportional to 106,485.10, 146,996.67 and 68,777.74 is: 94,943.79
Step by Step Solution
- Step 1: Write the proportion equation
106,485.10 : 146,996.67 = 68,777.74 : x - Step 2: Convert to fraction form
106,485.10/146,996.67 = 68,777.74/x - Step 3: Cross multiply
106,485.10x = 146,996.67 × 68,777.74 - Step 4: Simplify right side
106,485.10x = 10,110,098,750.13 - Step 5: Solve for x
x = 10,110,098,750.13/106,485.10 - Step 6: Final answer
x = 94,943.79
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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.