Finding the Fourth Proportional to 126,155.79, 189,270.21 and 37,411.44
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Solution
The fourth proportional to 126,155.79, 189,270.21 and 37,411.44 is: 56,127.99
Step by Step Solution
- Step 1: Write the proportion equation
126,155.79 : 189,270.21 = 37,411.44 : x - Step 2: Convert to fraction form
126,155.79/189,270.21 = 37,411.44/x - Step 3: Cross multiply
126,155.79x = 189,270.21 × 37,411.44 - Step 4: Simplify right side
126,155.79x = 7,080,871,105.20 - Step 5: Solve for x
x = 7,080,871,105.20/126,155.79 - Step 6: Final answer
x = 56,127.99
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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.