Finding the Fourth Proportional to 167,970.35, 231,804.40 and 91,491.75
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Solution
The fourth proportional to 167,970.35, 231,804.40 and 91,491.75 is: 126,261.50
Step by Step Solution
- Step 1: Write the proportion equation
167,970.35 : 231,804.40 = 91,491.75 : x - Step 2: Convert to fraction form
167,970.35/231,804.40 = 91,491.75/x - Step 3: Cross multiply
167,970.35x = 231,804.40 × 91,491.75 - Step 4: Simplify right side
167,970.35x = 21,208,188,597.22 - Step 5: Solve for x
x = 21,208,188,597.22/167,970.35 - Step 6: Final answer
x = 126,261.50
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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.