Finding the Fourth Proportional to 129,028.80, 193,312.80 and 110,596.80
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Solution
The fourth proportional to 129,028.80, 193,312.80 and 110,596.80 is: 165,697.71
Step by Step Solution
- Step 1: Write the proportion equation
129,028.80 : 193,312.80 = 110,596.80 : x - Step 2: Convert to fraction form
129,028.80/193,312.80 = 110,596.80/x - Step 3: Cross multiply
129,028.80x = 193,312.80 × 110,596.80 - Step 4: Simplify right side
129,028.80x = 21,379,777,079.04 - Step 5: Solve for x
x = 21,379,777,079.04/129,028.80 - Step 6: Final answer
x = 165,697.71
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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.