Finding the Fourth Proportional to 126,737.52, 174,916.20 and 73,012.08
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Solution
The fourth proportional to 126,737.52, 174,916.20 and 73,012.08 is: 100,767.28
Step by Step Solution
- Step 1: Write the proportion equation
126,737.52 : 174,916.20 = 73,012.08 : x - Step 2: Convert to fraction form
126,737.52/174,916.20 = 73,012.08/x - Step 3: Cross multiply
126,737.52x = 174,916.20 × 73,012.08 - Step 4: Simplify right side
126,737.52x = 12,770,995,587.70 - Step 5: Solve for x
x = 12,770,995,587.70/126,737.52 - Step 6: Final answer
x = 100,767.28
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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.