Finding the Fourth Proportional to 166,878.99, 230,291.24 and 91,427.31
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Solution
The fourth proportional to 166,878.99, 230,291.24 and 91,427.31 is: 126,168.72
Step by Step Solution
- Step 1: Write the proportion equation
166,878.99 : 230,291.24 = 91,427.31 : x - Step 2: Convert to fraction form
166,878.99/230,291.24 = 91,427.31/x - Step 3: Cross multiply
166,878.99x = 230,291.24 × 91,427.31 - Step 4: Simplify right side
166,878.99x = 21,054,908,132.63 - Step 5: Solve for x
x = 21,054,908,132.63/166,878.99 - Step 6: Final answer
x = 126,168.72
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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.