Finding the Fourth Proportional to 115,366.06, 159,205.20 and 63,683.19
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Solution
The fourth proportional to 115,366.06, 159,205.20 and 63,683.19 is: 87,882.82
Step by Step Solution
- Step 1: Write the proportion equation
115,366.06 : 159,205.20 = 63,683.19 : x - Step 2: Convert to fraction form
115,366.06/159,205.20 = 63,683.19/x - Step 3: Cross multiply
115,366.06x = 159,205.20 × 63,683.19 - Step 4: Simplify right side
115,366.06x = 10,138,694,761.78 - Step 5: Solve for x
x = 10,138,694,761.78/115,366.06 - Step 6: Final answer
x = 87,882.82
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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.