Finding the Fourth Proportional to 135,649.28, 203,447.30 and 99,777.02
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Solution
The fourth proportional to 135,649.28, 203,447.30 and 99,777.02 is: 149,645.94
Step by Step Solution
- Step 1: Write the proportion equation
135,649.28 : 203,447.30 = 99,777.02 : x - Step 2: Convert to fraction form
135,649.28/203,447.30 = 99,777.02/x - Step 3: Cross multiply
135,649.28x = 203,447.30 × 99,777.02 - Step 4: Simplify right side
135,649.28x = 20,299,363,804.92 - Step 5: Solve for x
x = 20,299,363,804.92/135,649.28 - Step 6: Final answer
x = 149,645.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.