Finding the Fourth Proportional to 115,121.98, 158,824.65 and 69,783.42
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Solution
The fourth proportional to 115,121.98, 158,824.65 and 69,783.42 is: 96,274.65
Step by Step Solution
- Step 1: Write the proportion equation
115,121.98 : 158,824.65 = 69,783.42 : x - Step 2: Convert to fraction form
115,121.98/158,824.65 = 69,783.42/x - Step 3: Cross multiply
115,121.98x = 158,824.65 × 69,783.42 - Step 4: Simplify right side
115,121.98x = 11,083,327,722.05 - Step 5: Solve for x
x = 11,083,327,722.05/115,121.98 - Step 6: Final answer
x = 96,274.65
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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.