Finding the Fourth Proportional to 129,454.80, 194,188.60 and 67,246.80
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Solution
The fourth proportional to 129,454.80, 194,188.60 and 67,246.80 is: 100,873.52
Step by Step Solution
- Step 1: Write the proportion equation
129,454.80 : 194,188.60 = 67,246.80 : x - Step 2: Convert to fraction form
129,454.80/194,188.60 = 67,246.80/x - Step 3: Cross multiply
129,454.80x = 194,188.60 × 67,246.80 - Step 4: Simplify right side
129,454.80x = 13,058,561,946.48 - Step 5: Solve for x
x = 13,058,561,946.48/129,454.80 - Step 6: Final answer
x = 100,873.52
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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.