Finding the Fourth Proportional to 129,275.26, 194,094.47 and 66,140.65
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Solution
The fourth proportional to 129,275.26, 194,094.47 and 66,140.65 is: 99,303.88
Step by Step Solution
- Step 1: Write the proportion equation
129,275.26 : 194,094.47 = 66,140.65 : x - Step 2: Convert to fraction form
129,275.26/194,094.47 = 66,140.65/x - Step 3: Cross multiply
129,275.26x = 194,094.47 × 66,140.65 - Step 4: Simplify right side
129,275.26x = 12,837,534,407.21 - Step 5: Solve for x
x = 12,837,534,407.21/129,275.26 - Step 6: Final answer
x = 99,303.88
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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.