Finding the Fourth Proportional to 81,866.14, 122,668.08 and 73,992.94
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Solution
The fourth proportional to 81,866.14, 122,668.08 and 73,992.94 is: 110,870.89
Step by Step Solution
- Step 1: Write the proportion equation
81,866.14 : 122,668.08 = 73,992.94 : x - Step 2: Convert to fraction form
81,866.14/122,668.08 = 73,992.94/x - Step 3: Cross multiply
81,866.14x = 122,668.08 × 73,992.94 - Step 4: Simplify right side
81,866.14x = 9,076,571,883.36 - Step 5: Solve for x
x = 9,076,571,883.36/81,866.14 - Step 6: Final answer
x = 110,870.89
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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.