Finding the Fourth Proportional to 136,719.26, 204,681.74 and 79,619.07
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Solution
The fourth proportional to 136,719.26, 204,681.74 and 79,619.07 is: 119,197.32
Step by Step Solution
- Step 1: Write the proportion equation
136,719.26 : 204,681.74 = 79,619.07 : x - Step 2: Convert to fraction form
136,719.26/204,681.74 = 79,619.07/x - Step 3: Cross multiply
136,719.26x = 204,681.74 × 79,619.07 - Step 4: Simplify right side
136,719.26x = 16,296,569,002.91 - Step 5: Solve for x
x = 16,296,569,002.91/136,719.26 - Step 6: Final answer
x = 119,197.32
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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.