Finding the Fourth Proportional to 147,420.75, 203,440.73 and 80,352.75
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Solution
The fourth proportional to 147,420.75, 203,440.73 and 80,352.75 is: 110,886.84
Step by Step Solution
- Step 1: Write the proportion equation
147,420.75 : 203,440.73 = 80,352.75 : x - Step 2: Convert to fraction form
147,420.75/203,440.73 = 80,352.75/x - Step 3: Cross multiply
147,420.75x = 203,440.73 × 80,352.75 - Step 4: Simplify right side
147,420.75x = 16,347,021,715.74 - Step 5: Solve for x
x = 16,347,021,715.74/147,420.75 - Step 6: Final answer
x = 110,886.84
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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.