Finding the Fourth Proportional to 135,494.06, 186,983.10 and 75,065.99
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Solution
The fourth proportional to 135,494.06, 186,983.10 and 75,065.99 is: 103,591.78
Step by Step Solution
- Step 1: Write the proportion equation
135,494.06 : 186,983.10 = 75,065.99 : x - Step 2: Convert to fraction form
135,494.06/186,983.10 = 75,065.99/x - Step 3: Cross multiply
135,494.06x = 186,983.10 × 75,065.99 - Step 4: Simplify right side
135,494.06x = 14,036,071,514.77 - Step 5: Solve for x
x = 14,036,071,514.77/135,494.06 - Step 6: Final answer
x = 103,591.78
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1.5x scale
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.