Finding the Fourth Proportional to 146,057.58, 201,560.07 and 78,989.58
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Solution
The fourth proportional to 146,057.58, 201,560.07 and 78,989.58 is: 109,005.95
Step by Step Solution
- Step 1: Write the proportion equation
146,057.58 : 201,560.07 = 78,989.58 : x - Step 2: Convert to fraction form
146,057.58/201,560.07 = 78,989.58/x - Step 3: Cross multiply
146,057.58x = 201,560.07 × 78,989.58 - Step 4: Simplify right side
146,057.58x = 15,921,145,274.07 - Step 5: Solve for x
x = 15,921,145,274.07/146,057.58 - Step 6: Final answer
x = 109,005.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.