Finding the Fourth Proportional to 166,756.59, 230,121.81 and 91,305.09
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Solution
The fourth proportional to 166,756.59, 230,121.81 and 91,305.09 is: 125,999.77
Step by Step Solution
- Step 1: Write the proportion equation
166,756.59 : 230,121.81 = 91,305.09 : x - Step 2: Convert to fraction form
166,756.59/230,121.81 = 91,305.09/x - Step 3: Cross multiply
166,756.59x = 230,121.81 × 91,305.09 - Step 4: Simplify right side
166,756.59x = 21,011,292,573.01 - Step 5: Solve for x
x = 21,011,292,573.01/166,756.59 - Step 6: Final answer
x = 125,999.77
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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.