Finding the Fourth Proportional to 120,530.77, 166,333.97 and 69,554.08
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Solution
The fourth proportional to 120,530.77, 166,333.97 and 69,554.08 is: 95,985.50
Step by Step Solution
- Step 1: Write the proportion equation
120,530.77 : 166,333.97 = 69,554.08 : x - Step 2: Convert to fraction form
120,530.77/166,333.97 = 69,554.08/x - Step 3: Cross multiply
120,530.77x = 166,333.97 × 69,554.08 - Step 4: Simplify right side
120,530.77x = 11,569,206,377.07 - Step 5: Solve for x
x = 11,569,206,377.07/120,530.77 - Step 6: Final answer
x = 95,985.50
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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.