Finding the Fourth Proportional to 194,021.12, 291,079.20 and 67,643.84
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Solution
The fourth proportional to 194,021.12, 291,079.20 and 67,643.84 is: 101,482.33
Step by Step Solution
- Step 1: Write the proportion equation
194,021.12 : 291,079.20 = 67,643.84 : x - Step 2: Convert to fraction form
194,021.12/291,079.20 = 67,643.84/x - Step 3: Cross multiply
194,021.12x = 291,079.20 × 67,643.84 - Step 4: Simplify right side
194,021.12x = 19,689,714,832.13 - Step 5: Solve for x
x = 19,689,714,832.13/194,021.12 - Step 6: Final answer
x = 101,482.33
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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.