Finding the Fourth Proportional to 115,497.40, 173,246.10 and 70,979.80
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Solution
The fourth proportional to 115,497.40, 173,246.10 and 70,979.80 is: 106,469.70
Step by Step Solution
- Step 1: Write the proportion equation
115,497.40 : 173,246.10 = 70,979.80 : x - Step 2: Convert to fraction form
115,497.40/173,246.10 = 70,979.80/x - Step 3: Cross multiply
115,497.40x = 173,246.10 × 70,979.80 - Step 4: Simplify right side
115,497.40x = 12,296,973,528.78 - Step 5: Solve for x
x = 12,296,973,528.78/115,497.40 - Step 6: Final answer
x = 106,469.70
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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.