Finding the Fourth Proportional to 115,185.84, 173,305.80 and 68,473.68
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Solution
The fourth proportional to 115,185.84, 173,305.80 and 68,473.68 is: 103,023.83
Step by Step Solution
- Step 1: Write the proportion equation
115,185.84 : 173,305.80 = 68,473.68 : x - Step 2: Convert to fraction form
115,185.84/173,305.80 = 68,473.68/x - Step 3: Cross multiply
115,185.84x = 173,305.80 × 68,473.68 - Step 4: Simplify right side
115,185.84x = 11,866,885,891.34 - Step 5: Solve for x
x = 11,866,885,891.34/115,185.84 - Step 6: Final answer
x = 103,023.83
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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.