Finding the Fourth Proportional to 136,642.08, 204,959.28 and 74,434.08
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Solution
The fourth proportional to 136,642.08, 204,959.28 and 74,434.08 is: 111,649.03
Step by Step Solution
- Step 1: Write the proportion equation
136,642.08 : 204,959.28 = 74,434.08 : x - Step 2: Convert to fraction form
136,642.08/204,959.28 = 74,434.08/x - Step 3: Cross multiply
136,642.08x = 204,959.28 × 74,434.08 - Step 4: Simplify right side
136,642.08x = 15,255,955,444.26 - Step 5: Solve for x
x = 15,255,955,444.26/136,642.08 - Step 6: Final answer
x = 111,649.03
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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.