Finding the Fourth Proportional to 136,643.08, 204,960.78 and 74,435.08
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Solution
The fourth proportional to 136,643.08, 204,960.78 and 74,435.08 is: 111,650.53
Step by Step Solution
- Step 1: Write the proportion equation
136,643.08 : 204,960.78 = 74,435.08 : x - Step 2: Convert to fraction form
136,643.08/204,960.78 = 74,435.08/x - Step 3: Cross multiply
136,643.08x = 204,960.78 × 74,435.08 - Step 4: Simplify right side
136,643.08x = 15,256,272,056.16 - Step 5: Solve for x
x = 15,256,272,056.16/136,643.08 - Step 6: Final answer
x = 111,650.53
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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.