Finding the Fourth Proportional to 115,815.08, 173,748.12 and 65,918.66
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Solution
The fourth proportional to 115,815.08, 173,748.12 and 65,918.66 is: 98,892.50
Step by Step Solution
- Step 1: Write the proportion equation
115,815.08 : 173,748.12 = 65,918.66 : x - Step 2: Convert to fraction form
115,815.08/173,748.12 = 65,918.66/x - Step 3: Cross multiply
115,815.08x = 173,748.12 × 65,918.66 - Step 4: Simplify right side
115,815.08x = 11,453,243,247.92 - Step 5: Solve for x
x = 11,453,243,247.92/115,815.08 - Step 6: Final answer
x = 98,892.50
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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.