Finding the Fourth Proportional to 126,194.99, 174,149.21 and 72,490.39
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Solution
The fourth proportional to 126,194.99, 174,149.21 and 72,490.39 is: 100,036.81
Step by Step Solution
- Step 1: Write the proportion equation
126,194.99 : 174,149.21 = 72,490.39 : x - Step 2: Convert to fraction form
126,194.99/174,149.21 = 72,490.39/x - Step 3: Cross multiply
126,194.99x = 174,149.21 × 72,490.39 - Step 4: Simplify right side
126,194.99x = 12,624,144,151.09 - Step 5: Solve for x
x = 12,624,144,151.09/126,194.99 - Step 6: Final answer
x = 100,036.81
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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.