Finding the Fourth Proportional to 84,819.70, 126,970.35 and 84,819.70
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Solution
The fourth proportional to 84,819.70, 126,970.35 and 84,819.70 is: 126,970.35
Step by Step Solution
- Step 1: Write the proportion equation
84,819.70 : 126,970.35 = 84,819.70 : x - Step 2: Convert to fraction form
84,819.70/126,970.35 = 84,819.70/x - Step 3: Cross multiply
84,819.70x = 126,970.35 × 84,819.70 - Step 4: Simplify right side
84,819.70x = 10,769,586,995.90 - Step 5: Solve for x
x = 10,769,586,995.90/84,819.70 - Step 6: Final answer
x = 126,970.35
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1.5x scale
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.