Finding the Fourth Proportional to 136,889.59, 204,904.20 and 87,025.99
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Solution
The fourth proportional to 136,889.59, 204,904.20 and 87,025.99 is: 130,265.50
Step by Step Solution
- Step 1: Write the proportion equation
136,889.59 : 204,904.20 = 87,025.99 : x - Step 2: Convert to fraction form
136,889.59/204,904.20 = 87,025.99/x - Step 3: Cross multiply
136,889.59x = 204,904.20 × 87,025.99 - Step 4: Simplify right side
136,889.59x = 17,831,989,835.64 - Step 5: Solve for x
x = 17,831,989,835.64/136,889.59 - Step 6: Final answer
x = 130,265.50
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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.