Finding the Fourth Proportional to 163,979.54, 245,969.36 and 126,594.19
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Solution
The fourth proportional to 163,979.54, 245,969.36 and 126,594.19 is: 189,891.32
Step by Step Solution
- Step 1: Write the proportion equation
163,979.54 : 245,969.36 = 126,594.19 : x - Step 2: Convert to fraction form
163,979.54/245,969.36 = 126,594.19/x - Step 3: Cross multiply
163,979.54x = 245,969.36 × 126,594.19 - Step 4: Simplify right side
163,979.54x = 31,138,291,894.02 - Step 5: Solve for x
x = 31,138,291,894.02/163,979.54 - Step 6: Final answer
x = 189,891.32
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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.