Finding the Fourth Proportional to 96,489.84, 132,858.75 and 85,716.03
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Solution
The fourth proportional to 96,489.84, 132,858.75 and 85,716.03 is: 118,024.07
Step by Step Solution
- Step 1: Write the proportion equation
96,489.84 : 132,858.75 = 85,716.03 : x - Step 2: Convert to fraction form
96,489.84/132,858.75 = 85,716.03/x - Step 3: Cross multiply
96,489.84x = 132,858.75 × 85,716.03 - Step 4: Simplify right side
96,489.84x = 11,388,123,507.89 - Step 5: Solve for x
x = 11,388,123,507.89/96,489.84 - Step 6: Final answer
x = 118,024.07
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1.5x scale
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.