Finding the Fourth Proportional to 129,966.80, 194,518.20 and 94,326.80
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Solution
The fourth proportional to 129,966.80, 194,518.20 and 94,326.80 is: 141,176.66
Step by Step Solution
- Step 1: Write the proportion equation
129,966.80 : 194,518.20 = 94,326.80 : x - Step 2: Convert to fraction form
129,966.80/194,518.20 = 94,326.80/x - Step 3: Cross multiply
129,966.80x = 194,518.20 × 94,326.80 - Step 4: Simplify right side
129,966.80x = 18,348,279,347.76 - Step 5: Solve for x
x = 18,348,279,347.76/129,966.80 - Step 6: Final answer
x = 141,176.66
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1.5x scale
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.