Finding the Fourth Proportional to 135,659.91, 186,994.96 and 106,932.99
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Solution
The fourth proportional to 135,659.91, 186,994.96 and 106,932.99 is: 147,397.49
Step by Step Solution
- Step 1: Write the proportion equation
135,659.91 : 186,994.96 = 106,932.99 : x - Step 2: Convert to fraction form
135,659.91/186,994.96 = 106,932.99/x - Step 3: Cross multiply
135,659.91x = 186,994.96 × 106,932.99 - Step 4: Simplify right side
135,659.91x = 19,995,930,187.73 - Step 5: Solve for x
x = 19,995,930,187.73/135,659.91 - Step 6: Final answer
x = 147,397.49
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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.