Finding the Fourth Proportional to 129,165.08, 193,758.70 and 35,670.84
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Solution
The fourth proportional to 129,165.08, 193,758.70 and 35,670.84 is: 53,509.32
Step by Step Solution
- Step 1: Write the proportion equation
129,165.08 : 193,758.70 = 35,670.84 : x - Step 2: Convert to fraction form
129,165.08/193,758.70 = 35,670.84/x - Step 3: Cross multiply
129,165.08x = 193,758.70 × 35,670.84 - Step 4: Simplify right side
129,165.08x = 6,911,535,586.31 - Step 5: Solve for x
x = 6,911,535,586.31/129,165.08 - Step 6: Final answer
x = 53,509.32
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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.