Finding the Fourth Proportional to 132,871.26, 183,258.66 and 85,129.08
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Solution
The fourth proportional to 132,871.26, 183,258.66 and 85,129.08 is: 117,411.70
Step by Step Solution
- Step 1: Write the proportion equation
132,871.26 : 183,258.66 = 85,129.08 : x - Step 2: Convert to fraction form
132,871.26/183,258.66 = 85,129.08/x - Step 3: Cross multiply
132,871.26x = 183,258.66 × 85,129.08 - Step 4: Simplify right side
132,871.26x = 15,600,641,127.83 - Step 5: Solve for x
x = 15,600,641,127.83/132,871.26 - Step 6: Final answer
x = 117,411.70
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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.