Finding the Fourth Proportional to 126,048.60, 188,894.70 and 69,913.44
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Solution
The fourth proportional to 126,048.60, 188,894.70 and 69,913.44 is: 104,771.32
Step by Step Solution
- Step 1: Write the proportion equation
126,048.60 : 188,894.70 = 69,913.44 : x - Step 2: Convert to fraction form
126,048.60/188,894.70 = 69,913.44/x - Step 3: Cross multiply
126,048.60x = 188,894.70 × 69,913.44 - Step 4: Simplify right side
126,048.60x = 13,206,278,274.77 - Step 5: Solve for x
x = 13,206,278,274.77/126,048.60 - Step 6: Final answer
x = 104,771.32
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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.