Finding the Fourth Proportional to 83,596.40, 126,139.30 and 80,356.08
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Solution
The fourth proportional to 83,596.40, 126,139.30 and 80,356.08 is: 121,249.95
Step by Step Solution
- Step 1: Write the proportion equation
83,596.40 : 126,139.30 = 80,356.08 : x - Step 2: Convert to fraction form
83,596.40/126,139.30 = 80,356.08/x - Step 3: Cross multiply
83,596.40x = 126,139.30 × 80,356.08 - Step 4: Simplify right side
83,596.40x = 10,136,059,681.94 - Step 5: Solve for x
x = 10,136,059,681.94/83,596.40 - Step 6: Final answer
x = 121,249.95
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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.