Finding the Fourth Proportional to 115,796.80, 173,257.80 and 76,430.80
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Solution
The fourth proportional to 115,796.80, 173,257.80 and 76,430.80 is: 114,357.50
Step by Step Solution
- Step 1: Write the proportion equation
115,796.80 : 173,257.80 = 76,430.80 : x - Step 2: Convert to fraction form
115,796.80/173,257.80 = 76,430.80/x - Step 3: Cross multiply
115,796.80x = 173,257.80 × 76,430.80 - Step 4: Simplify right side
115,796.80x = 13,242,232,260.24 - Step 5: Solve for x
x = 13,242,232,260.24/115,796.80 - Step 6: Final answer
x = 114,357.50
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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.