Finding the Fourth Proportional to 166,853.63, 230,263.76 and 91,402.13
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Solution
The fourth proportional to 166,853.63, 230,263.76 and 91,402.13 is: 126,138.09
Step by Step Solution
- Step 1: Write the proportion equation
166,853.63 : 230,263.76 = 91,402.13 : x - Step 2: Convert to fraction form
166,853.63/230,263.76 = 91,402.13/x - Step 3: Cross multiply
166,853.63x = 230,263.76 × 91,402.13 - Step 4: Simplify right side
166,853.63x = 21,046,598,125.81 - Step 5: Solve for x
x = 21,046,598,125.81/166,853.63 - Step 6: Final answer
x = 126,138.09
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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.