Finding the Fourth Proportional to 126,015.95, 173,901.48 and 68,655.09
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Solution
The fourth proportional to 126,015.95, 173,901.48 and 68,655.09 is: 94,743.74
Step by Step Solution
- Step 1: Write the proportion equation
126,015.95 : 173,901.48 = 68,655.09 : x - Step 2: Convert to fraction form
126,015.95/173,901.48 = 68,655.09/x - Step 3: Cross multiply
126,015.95x = 173,901.48 × 68,655.09 - Step 4: Simplify right side
126,015.95x = 11,939,222,155.21 - Step 5: Solve for x
x = 11,939,222,155.21/126,015.95 - Step 6: Final answer
x = 94,743.74
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1.5x scale
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.