Finding the Fourth Proportional to 126,117.24, 174,033.36 and 72,394.80
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Solution
The fourth proportional to 126,117.24, 174,033.36 and 72,394.80 is: 99,899.98
Step by Step Solution
- Step 1: Write the proportion equation
126,117.24 : 174,033.36 = 72,394.80 : x - Step 2: Convert to fraction form
126,117.24/174,033.36 = 72,394.80/x - Step 3: Cross multiply
126,117.24x = 174,033.36 × 72,394.80 - Step 4: Simplify right side
126,117.24x = 12,599,110,290.53 - Step 5: Solve for x
x = 12,599,110,290.53/126,117.24 - Step 6: Final answer
x = 99,899.98
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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.