Finding the Fourth Proportional to 146,473.75, 202,133.78 and 79,405.75
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Solution
The fourth proportional to 146,473.75, 202,133.78 and 79,405.75 is: 109,579.94
Step by Step Solution
- Step 1: Write the proportion equation
146,473.75 : 202,133.78 = 79,405.75 : x - Step 2: Convert to fraction form
146,473.75/202,133.78 = 79,405.75/x - Step 3: Cross multiply
146,473.75x = 202,133.78 × 79,405.75 - Step 4: Simplify right side
146,473.75x = 16,050,584,401.24 - Step 5: Solve for x
x = 16,050,584,401.24/146,473.75 - Step 6: Final answer
x = 109,579.94
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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.