Finding the Fourth Proportional to 126,048.68, 173,946.40 and 68,687.88
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Solution
The fourth proportional to 126,048.68, 173,946.40 and 68,687.88 is: 94,788.85
Step by Step Solution
- Step 1: Write the proportion equation
126,048.68 : 173,946.40 = 68,687.88 : x - Step 2: Convert to fraction form
126,048.68/173,946.40 = 68,687.88/x - Step 3: Cross multiply
126,048.68x = 173,946.40 × 68,687.88 - Step 4: Simplify right side
126,048.68x = 11,948,009,449.63 - Step 5: Solve for x
x = 11,948,009,449.63/126,048.68 - Step 6: Final answer
x = 94,788.85
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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.