Finding the Fourth Proportional to 126,863.78, 174,906.06 and 109,149.08
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Solution
The fourth proportional to 126,863.78, 174,906.06 and 109,149.08 is: 150,482.95
Step by Step Solution
- Step 1: Write the proportion equation
126,863.78 : 174,906.06 = 109,149.08 : x - Step 2: Convert to fraction form
126,863.78/174,906.06 = 109,149.08/x - Step 3: Cross multiply
126,863.78x = 174,906.06 × 109,149.08 - Step 4: Simplify right side
126,863.78x = 19,090,835,535.42 - Step 5: Solve for x
x = 19,090,835,535.42/126,863.78 - Step 6: Final answer
x = 150,482.95
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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.