Finding the Fourth Proportional to 115,114.37, 158,815.69 and 69,759.63
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Solution
The fourth proportional to 115,114.37, 158,815.69 and 69,759.63 is: 96,242.75
Step by Step Solution
- Step 1: Write the proportion equation
115,114.37 : 158,815.69 = 69,759.63 : x - Step 2: Convert to fraction form
115,114.37/158,815.69 = 69,759.63/x - Step 3: Cross multiply
115,114.37x = 158,815.69 × 69,759.63 - Step 4: Simplify right side
115,114.37x = 11,078,923,598.20 - Step 5: Solve for x
x = 11,078,923,598.20/115,114.37 - Step 6: Final answer
x = 96,242.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.