Finding the Fourth Proportional to 136,889.09, 204,903.45 and 87,025.49
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Solution
The fourth proportional to 136,889.09, 204,903.45 and 87,025.49 is: 130,264.75
Step by Step Solution
- Step 1: Write the proportion equation
136,889.09 : 204,903.45 = 87,025.49 : x - Step 2: Convert to fraction form
136,889.09/204,903.45 = 87,025.49/x - Step 3: Cross multiply
136,889.09x = 204,903.45 × 87,025.49 - Step 4: Simplify right side
136,889.09x = 17,831,822,114.42 - Step 5: Solve for x
x = 17,831,822,114.42/136,889.09 - Step 6: Final answer
x = 130,264.75
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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.