Finding the Fourth Proportional to 126,979.63, 175,249.75 and 78,597.08
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Solution
The fourth proportional to 126,979.63, 175,249.75 and 78,597.08 is: 108,475.03
Step by Step Solution
- Step 1: Write the proportion equation
126,979.63 : 175,249.75 = 78,597.08 : x - Step 2: Convert to fraction form
126,979.63/175,249.75 = 78,597.08/x - Step 3: Cross multiply
126,979.63x = 175,249.75 × 78,597.08 - Step 4: Simplify right side
126,979.63x = 13,774,118,227.74 - Step 5: Solve for x
x = 13,774,118,227.74/126,979.63 - Step 6: Final answer
x = 108,475.03
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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.