Finding the Fourth Proportional to 84,815.70, 126,964.35 and 84,815.70
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Solution
The fourth proportional to 84,815.70, 126,964.35 and 84,815.70 is: 126,964.35
Step by Step Solution
- Step 1: Write the proportion equation
84,815.70 : 126,964.35 = 84,815.70 : x - Step 2: Convert to fraction form
84,815.70/126,964.35 = 84,815.70/x - Step 3: Cross multiply
84,815.70x = 126,964.35 × 84,815.70 - Step 4: Simplify right side
84,815.70x = 10,768,570,220.30 - Step 5: Solve for x
x = 10,768,570,220.30/84,815.70 - Step 6: Final answer
x = 126,964.35
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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.