Finding the Fourth Proportional to 115,890.84, 173,716.96 and 65,864.08
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Solution
The fourth proportional to 115,890.84, 173,716.96 and 65,864.08 is: 98,728.32
Step by Step Solution
- Step 1: Write the proportion equation
115,890.84 : 173,716.96 = 65,864.08 : x - Step 2: Convert to fraction form
115,890.84/173,716.96 = 65,864.08/x - Step 3: Cross multiply
115,890.84x = 173,716.96 × 65,864.08 - Step 4: Simplify right side
115,890.84x = 11,441,707,750.80 - Step 5: Solve for x
x = 11,441,707,750.80/115,890.84 - Step 6: Final answer
x = 98,728.32
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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.