Finding the Fourth Proportional to 126,985.80, 175,230.88 and 69,615.96
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Solution
The fourth proportional to 126,985.80, 175,230.88 and 69,615.96 is: 96,064.80
Step by Step Solution
- Step 1: Write the proportion equation
126,985.80 : 175,230.88 = 69,615.96 : x - Step 2: Convert to fraction form
126,985.80/175,230.88 = 69,615.96/x - Step 3: Cross multiply
126,985.80x = 175,230.88 × 69,615.96 - Step 4: Simplify right side
126,985.80x = 12,198,865,932.84 - Step 5: Solve for x
x = 12,198,865,932.84/126,985.80 - Step 6: Final answer
x = 96,064.80
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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.