Finding the Fourth Proportional to 145,959.80, 218,939.70 and 93,471.80
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Solution
The fourth proportional to 145,959.80, 218,939.70 and 93,471.80 is: 140,207.70
Step by Step Solution
- Step 1: Write the proportion equation
145,959.80 : 218,939.70 = 93,471.80 : x - Step 2: Convert to fraction form
145,959.80/218,939.70 = 93,471.80/x - Step 3: Cross multiply
145,959.80x = 218,939.70 × 93,471.80 - Step 4: Simplify right side
145,959.80x = 20,464,687,850.46 - Step 5: Solve for x
x = 20,464,687,850.46/145,959.80 - Step 6: Final answer
x = 140,207.70
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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.