Finding the Fourth Proportional to 83,702.44, 126,129.44 and 69,236.92
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Solution
The fourth proportional to 83,702.44, 126,129.44 and 69,236.92 is: 104,331.65
Step by Step Solution
- Step 1: Write the proportion equation
83,702.44 : 126,129.44 = 69,236.92 : x - Step 2: Convert to fraction form
83,702.44/126,129.44 = 69,236.92/x - Step 3: Cross multiply
83,702.44x = 126,129.44 × 69,236.92 - Step 4: Simplify right side
83,702.44x = 8,732,813,946.92 - Step 5: Solve for x
x = 8,732,813,946.92/83,702.44 - Step 6: Final answer
x = 104,331.65
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.