Finding the Fourth Proportional to 84,812.70, 126,959.85 and 84,812.70
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Solution
The fourth proportional to 84,812.70, 126,959.85 and 84,812.70 is: 126,959.85
Step by Step Solution
- Step 1: Write the proportion equation
84,812.70 : 126,959.85 = 84,812.70 : x - Step 2: Convert to fraction form
84,812.70/126,959.85 = 84,812.70/x - Step 3: Cross multiply
84,812.70x = 126,959.85 × 84,812.70 - Step 4: Simplify right side
84,812.70x = 10,767,807,670.10 - Step 5: Solve for x
x = 10,767,807,670.10/84,812.70 - Step 6: Final answer
x = 126,959.85
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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.