Finding the Fourth Proportional to 126,160.48, 189,026.52 and 76,135.48
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Solution
The fourth proportional to 126,160.48, 189,026.52 and 76,135.48 is: 114,073.95
Step by Step Solution
- Step 1: Write the proportion equation
126,160.48 : 189,026.52 = 76,135.48 : x - Step 2: Convert to fraction form
126,160.48/189,026.52 = 76,135.48/x - Step 3: Cross multiply
126,160.48x = 189,026.52 × 76,135.48 - Step 4: Simplify right side
126,160.48x = 14,391,624,832.93 - Step 5: Solve for x
x = 14,391,624,832.93/126,160.48 - Step 6: Final answer
x = 114,073.95
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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.